Ali Akbar Velayati, Iran's Supreme Leader Ayatollah Ali Khamenei's top adviser on international affairs, arrives to deliver a news conference after meeting with Lebanon's Prime Minister Tammam Salam at the government palace in Beirut May 18, 2015. REUTERS/Mohamed Azakir 

Ali Akbar Velayati (C), Iran's Supreme Leader Ayatollah Ali Khamenei's top adviser on international affairs, meets with Lebanon's Prime Minister Tammam Salam along with Iranian ambassador in Lebanon Mohammad Fathali (L) at the government palace in Beirut, May 18, 2015. REUTERS/Mohamed Azakir 

Ali Akbar Velayati, Iran's Supreme Leader Ayatollah Ali Khamenei's top adviser on international affairs, smiles as he listens to questions from the media during a news conference after meeting with Lebanon's Prime Minister Tammam Salam at the government palace in Beirut May 18, 2015. REUTERS/Mohamed Azakir 

Ali Akbar Velayati (R), Iran's Supreme Leader Ayatollah Ali Khamenei's top adviser on international walks with Iranian ambassador in Lebanon Mohammad Fathali after delivering a news conference after meeting with Lebanon's Prime Minister Tammam Salam at the government palace in Beirut May 18, 2015. REUTERS/Mohamed Azakir 

Ali Akbar Velayati (R), Iran's Supreme Leader Ayatollah Ali Khamenei's top adviser on international affairs, speaks during a news conference as Iranian ambassador in Lebanon Mohammad Fathali listens, after meeting with Lebanon's Prime Minister Tammam Salam at the government palace in Beirut May 18, 2015. REUTERS/Mohamed Azakir 

Ali Akbar Velayati, Iran's Supreme Leader Ayatollah Ali Khamenei's top adviser on international affairs, speaks during a news conference after meeting with Lebanese parliament speaker Nabih Berri in Beirut May 18, 2015. REUTERS/Aziz Taher 

Ali Akbar Velayati (R), Iran's Supreme Leader Ayatollah Ali Khamenei's top adviser on international affairs, speaks during a news conference as Iranian ambassador in Lebanon Mohammad Fathali listens, after meeting with Lebanese parliament speaker Nabih Berri in Beirut May 18, 2015. REUTERS/Aziz Taher 

Ali Akbar Velayati (L), Iran's Supreme Leader Ayatollah Ali Khamenei's top adviser on international affairs, meets with Lebanese parliament speaker Nabih Berri in Beirut May 18, 2015. REUTERS/Aziz Taher 

Ali Akbar Velayati (R), Iran's Supreme Leader Ayatollah Ali Khamenei's top adviser on international affairs, walks with Iranian ambassador in Lebanon Mohammad Fathali as he arrives to meet with Lebanese parliament speaker Nabih Berri in Beirut May 18, 2015. REUTERS/Aziz Taher 

Members from Hashid Shaabi hold a banner of Supreme Leader Ayatollah Ali Khamenei (L) and Iran's late leader Ayatollah Ruhollah Khomeini (R) during a demonstration to show support for Yemen's Shi'ite Houthis and in protest of an air campaign in Yemen by a Saudi-led coalition, in Baghdad March 31, 2015. Saudi troops clashed with Yemeni Houthi fighters on Tuesday in the heaviest exchange of cross-border fire since the start of a Saudi-led air offensive last week, while Yemen's foreign minister called for a rapid Arab intervention on the ground. REUTERS/Thaier Al-Sudani 

Iraqi men hold portraits of Iran's late leader Ayatollah Ruhollah Khomeini (C), Supreme Leader Ayatollah Ali Khamenei (R) and Iraq's late Shi'ite cleric Mohammed Baqir al-Sadr (L) during a demonstration to show support for Yemen's Shi'ite Houthis and in protest of an air campaign in Yemen by a Saudi-led coalition, in Baghdad March 31, 2015. Saudi troops clashed with Yemeni Houthi fighters on Tuesday in the heaviest exchange of cross-border fire since the start of a Saudi-led air offensive last week, while Yemen's foreign minister called for a rapid Arab intervention on the ground. REUTERS/Thaier Al-Sudani 

Members from Hashid Shaabi hold portraits of lawmaker and paramilitary commander Hadi al-Amiri (C), Iran's Supreme Leader Ayatollah Ali Khamenei (R) and Iraq's top Shi'ite cleric Grand Ayatollah Ali al-Sistani (L) during a demonstration to show support for Yemen's Shi'ite Houthis and in protest of an air campaign in Yemen by a Saudi-led coalition, in Baghdad March 31, 2015. Saudi troops clashed with Yemeni Houthi fighters on Tuesday in the heaviest exchange of cross-border fire since the start of a Saudi-led air offensive last week, while Yemen's foreign minister called for a rapid Arab intervention on the ground. REUTERS/Thaier Al-Sudani 

A member from Hashid Shaabi holds a picture of Iran's Supreme Leader Ayatollah Ali Khamenei (L) and Iraq's top Shi'ite cleric Grand Ayatollah Ali al-Sistani (R) during a demonstration to show support for Yemen's Shi'ite Houthis and in protest of an air campaign in Yemen by a Saudi-led coalition, in Baghdad March 31, 2015. Saudi troops clashed with Yemeni Houthi fighters on Tuesday in the heaviest exchange of cross-border fire since the start of a Saudi-led air offensive last week, while Yemen's foreign minister called for a rapid Arab intervention on the ground. REUTERS/Thaier Al-Sudani 

Women cry during a ceremony honouring fighters of the Iraqi Shi'ite militia group Saraya al-Khorasani who died during their fight against the Islamic State, in Baghdad February 21, 2015. Families, military personnel and delegates attended the event in Baghdad to honour fighters of the Iraqi Shi'ite militia group formed in 2013 in response to Iran's Supreme Leader, Ayatollah Ali Khamenei's call to fight Sunni jihadists in Syria and later in Iraq. Picture taken February 21, 2015. REUTERS/Ahmed Saad (IRAQ - Tags - Tags: CIVIL UNREST POLITICS CONFLICT MILITARY) 

Hamid al-Jazaeiri, Deputy Commander General of Iraqi Shi'ite militia group Saraya al-Khorasani, gives a plaque to a family member at a ceremony honouring fighters of the group who died during their fight against the Islamic State, in Baghdad February 21, 2015. Families, military personnel and delegates attended the event in Baghdad to honour fighters of the Iraqi Shi'ite militia group formed in 2013 in response to Iran's Supreme Leader, Ayatollah Ali Khamenei's call to fight Sunni jihadists in Syria and later in Iraq. Picture taken February 21, 2015. REUTERS/Ahmed Saad (IRAQ - Tags: CIVIL UNREST POLITICS CONFLICT MILITARY) 

Family members of Brigadier General Hamid Taqavi of Iraqi Shi'ite militia group Saraya al-Khorasani, attend a ceremony honouring him and other fighters of the group who died during their fight against the Islamic State, in Baghdad February 21, 2015. Families, military personnel and delegates attended the event in Baghdad to honour fighters of the Iraqi Shi'ite militia group formed in 2013 in response to Iran's Supreme Leader, Ayatollah Ali Khamenei's call to fight Sunni jihadists in Syria and later in Iraq. Picture taken February 21, 2015. REUTERS/Ahmed Saad (IRAQ - Tags - Tags: CIVIL UNREST POLITICS CONFLICT MILITARY) 

Family members of Brigadier General Hamid Taqavi of Iraqi Shi'ite militia group Saraya al-Khorasani, stand near a portrait of Iran's Supreme Leader, Ayatollah Ali Khamenei (R), during a ceremony honouring Taqavi and other fighters of the group who died during their fight against the Islamic State, in Baghdad February 21, 2015. Families, military personnel and delegates attended the event in Baghdad to honour fighters of the Iraqi Shi'ite militia group formed in 2013 in response to Khamenei's call to fight Sunni jihadists in Syria and later in Iraq. Picture taken February 21, 2015. REUTERS/Ahmed Saad (IRAQ - Tags - Tags: CIVIL UNREST POLITICS CONFLICT MILITARY) 

Family members attend a ceremony honouring fighters of the Iraqi Shi'ite militia group Saraya al-Khorasani who died during their fight against the Islamic State, in Baghdad February 21, 2015. Families, military personnel and delegates attended the event in Baghdad to honour fighters of the Iraqi Shi'ite militia group formed in 2013 in response to Iran's Supreme Leader, Ayatollah Ali Khamenei's call to fight Sunni jihadists in Syria and later in Iraq. Picture taken February 21, 2015. REUTERS/Ahmed Saad (IRAQ - Tags - Tags: CIVIL UNREST POLITICS CONFLICT MILITARY) 

Hamid al-Jazaeiri, Deputy Commander General of Iraqi Shi'ite militia group Saraya al-Khorasani, speaks to the media at a ceremony honouring fighters of the group who died during their fight against the Islamic State, in Baghdad February 21, 2015. Families, military personnel and delegates attended the event in Baghdad to honour fighters of the Iraqi Shi'ite militia group formed in 2013 in response to Iran's Supreme Leader, Ayatollah Ali Khamenei's call to fight Sunni jihadists in Syria and later in Iraq. Picture taken February 21, 2015. REUTERS/Ahmed Saad (IRAQ - Tags: CIVIL UNREST POLITICS CONFLICT HEADSHOT) 

Majeed, brother of Brigadier General Hamid Taqavi of Iraqi Shi'ite militia group Saraya al-Khorasani, speaks to the media at a ceremony honouring his brother and other fighters of the group who died during their fight against the Islamic State, in Baghdad February 21, 2015. Families, military personnel and delegates attended the event in Baghdad to honour fighters of the Iraqi Shi'ite militia group formed in 2013 in response to Iran's Supreme Leader, Ayatollah Ali Khamenei's call to fight Sunni jihadists in Syria and later in Iraq. Picture taken February 21, 2015. REUTERS/Ahmed Saad (IRAQ - Tags: CIVIL UNREST POLITICS CONFLICT MILITARY) 

Iraqi Vice President Nuri al-Maliki (2nd L) speaks with Hamid al-Jazaeiri (2nd R), Deputy Commander General of Saraya al-Khorasani, at a ceremony honouring fighters of the group who died during their fight against the Islamic State, in Baghdad February 21, 2015. Families, military personnel and delegates attended the event in Baghdad to honour fighters of the Iraqi Shi'ite militia group formed in 2013 in response to Iran's Supreme Leader, Ayatollah Ali Khamenei's call to fight Sunni jihadists in Syria and later in Iraq. Picture taken February 21, 2015. REUTERS/Ahmed Saad (IRAQ - Tags: CIVIL UNREST POLITICS CONFLICT MILITARY) 

Family members of Brigadier General Hamid Taqavi of Iraqi Shi'ite militia group Saraya al-Khorasani, attend a ceremony honouring him and other fighters of the group who died during their fight against the Islamic State, in Baghdad February 21, 2015. Families, military personnel and delegates attended the event in Baghdad to honour fighters of the Iraqi Shi'ite militia group formed in 2013 in response to Iran's Supreme Leader, Ayatollah Ali Khamenei's call to fight Sunni jihadists in Syria and later in Iraq. Picture taken February 21, 2015. REUTERS/Ahmed Saad (IRAQ - Tags - Tags: CIVIL UNREST POLITICS CONFLICT MILITARY) 

Iraqi Vice President Nuri al-Maliki (C) speaks with Hamid al-Jazaeiri (R), Deputy Commander General of Saraya al-Khorasani, at a ceremony honouring fighters of the group who died during their fight against the Islamic State, in Baghdad February 21, 2015. Families, military personnel and delegates attended the event in Baghdad to honour fighters of the Iraqi Shi'ite militia group formed in 2013 in response to Iran's Supreme Leader, Ayatollah Ali Khamenei's call to fight Sunni jihadists in Syria and later in Iraq. Picture taken February 21, 2015. REUTERS/Ahmed Saad (IRAQ - Tags: CIVIL UNREST POLITICS CONFLICT) 

Hamid al-Jazaeiri, Deputy Commander General of Iraqi Shi'ite militia group Saraya al-Khorasani, speaks to the media at a ceremony honouring fighters of the group who died during their fight against the Islamic State, in Baghdad February 21, 2015. Families, military personnel and delegates attended the event in Baghdad to honour fighters of the Iraqi Shi'ite militia group formed in 2013 in response to Iran's Supreme Leader, Ayatollah Ali Khamenei's call to fight Sunni jihadists in Syria and later in Iraq. Picture taken February 21, 2015. REUTERS/Ahmed Saad (IRAQ - Tags: CIVIL UNREST POLITICS CONFLICT HEADSHOT) 

Majeed (C), brother of Brigadier General Hamid Taqavi of Iraqi Shi'ite militia group Saraya al-Khorasani, attends a ceremony honouring his brother and fighters of the group who died during their fight against the Islamic State, in Baghdad February 21, 2015. Families, military personnel and delegates attended the event in Baghdad to honour fighters of the Iraqi Shi'ite militia group formed in 2013 in response to Iran's Supreme Leader, Ayatollah Ali Khamenei's call to fight Sunni jihadists in Syria and later in Iraq. Picture taken February 21, 2015. REUTERS/Ahmed Saad (IRAQ - Tags - Tags: CIVIL UNREST POLITICS CONFLICT MILITARY) 

An Iranian Shi'ite Muslim pilgrim (R) kisses a portrait of Iran's Supreme Leader Ayatollah Ali Khamenei while commemorating Arbain in Kerbala, southwest of Baghdad December 12, 2014. Hundreds of thousands of black-clad pilgrims from across Iraq streamed into the city of Kerbala on Friday a day before the culmination of Saturday's Arbain, which marks the end of 40 days of mourning for Imam Hussein, a grandson of the Prophet Mohammed, who died in a 7th century battle at Kerbala. REUTERS/Mushtaq Muhammed(IRAQ - Tags: RELIGION SOCIETY) 

Iraqi Shiite Muslim men from Shi'ite Badr organisation hold portraits of Iran's late leader Ayatollah Ruhollah Khomeini (C), Supreme Leader Ayatollah Ali Khamenei (R) and Iraq's late Shi'ite cleric Mohammed Baqir al-Sadr (L) during a parade marking the annual al-Quds Day, or Jerusalem Day, on the last Friday of the Muslim holy month of Ramadan in Baghdad, July 25, 2014. REUTERS/Thaier al-Sudani (IRAQ - Tags: ANNIVERSARY POLITICS RELIGION) 

Iraqi Shiite Muslim men from Shi'ite Badr organisation hold a portrait of Iran's Supreme Leader Ayatollah Ali Khamenei as they walk along a street painted in the colours of the Israeli flag during a parade marking the annual al-Quds Day, or Jerusalem Day, on the last Friday of the Muslim holy month of Ramadan in Baghdad, July 25, 2014. REUTERS/Thaier al-Sudani (IRAQ - Tags: POLITICS SOCIETY RELIGION) 

An Iraqi Shi'ite Muslim man holds a portrait of Iranian Supreme Leader Ayatollah Ali Khamenei during a parade marking the annual Quds Day, or Jerusalem Day, on the last Friday of the Muslim holy month of Ramadan, in Baghdad July 25, 2014. REUTERS/Thaier al-Sudani (IRAQ - Tags: CIVIL UNREST POLITICS RELIGION) 

A poster of (R-L) Iran's supreme leader Ayatollah Ali Khamenei, Hezbollah Secretary-General Sayyed Hassan Nasrallah, former Hezbollah Secretary-General Sayyed Abbas al-Musawi and Lebanese resistance leader and cleric Sheikh Ragheb Harb, is seen in between Iranian, Syrian, Lebanese and Hezbollah flags during Resistance and Liberation Day celebrations in Bint Jbeil May 25, 2014. The event commemorates the 14th anniversary of Israel's withdrawal from southern Lebanon. REUTERS/Ali Hashisho (LEBANON - Tags: POLITICS ANNIVERSARY) 

Dancers wearing costumes stand on a float with sculptures depicting (L-R) Russian President Vladimir Putin, Israeli Prime Minister Benjamin Netanyahu, U.S. President Barack Obama, German Chancellor Angela Merkel and Iran's Supreme Leader Ayatollah Ali Khamenei during the annual parade for the Jewish holiday of Purim in Holon, near Tel Aviv March 16, 2014. Purim is a celebration of the Jews' salvation from genocide in ancient Persia, as recounted in the Book of Esther. REUTERS/Nir Elias (ISRAEL - Tags: RELIGION SOCIETY ANNIVERSARY) 

An Iraqi Shi'ite fighter holds a picture of Iran's Supreme Leader Ayatollah Ali Khamenei and cleric Ayatollah Khomeini during a military-style training at a camp on the outskirt of Damascus February 13, 2014. Picture taken February 13, 2014. REUTERS/Alaa Al-Marjani (SYRIA - Tags: CIVIL UNREST POLITICS CONFLICT) 

A poster depicting images of Shi'ite Iran's Supreme Leader Ayatollah Ali Khamenei is displayed at al-Firdous Square in Baghdad February 12, 2014. An Iraqi daily newspaper stopped publishing after two bombs were planted in the entrance to its headquarters in Baghdad on Monday and after threats from an Iranian-backed Shi'ite militia. Editors and reporters at Assabah AlJadeed said they had received death threats from the influential Asaib al-Haq militia in response to what it had described as an "insulting caricature" of Khamenei. REUTERS/Ahmed Saad (IRAQ - Tags: POLITICS CIVIL UNREST) 

Iraqi women walk past a poster depicting images of Shi'ite Iran's Supreme Leader Ayatollah Ali Khamenei at al-Firdous Square in Baghdad February 12, 2014. An Iraqi daily newspaper stopped publishing after two bombs were planted in the entrance to its headquarters in Baghdad on Monday and after threats from an Iranian-backed Shi'ite militia. Editors and reporters at Assabah AlJadeed said they had received death threats from the influential Asaib al-Haq militia in response to what it had described as an "insulting caricature" of Khamenei. REUTERS/Ahmed Saad (IRAQ - Tags: POLITICS CIVIL UNREST) 

Iraqi women walk towards a poster depicting images of Shi'ite Iran's Supreme Leader Ayatollah Ali Khamenei at al-Firdous Square in Baghdad February 12, 2014. An Iraqi daily newspaper stopped publishing after two bombs were planted in the entrance to its headquarters in Baghdad on Monday and after threats from an Iranian-backed Shi'ite militia. Editors and reporters at Assabah AlJadeed said they had received death threats from the influential Asaib al-Haq militia in response to what it had described as an "insulting caricature" of Khamenei. REUTERS/Ahmed Saad (IRAQ - Tags: POLITICS CIVIL UNREST) 

A man hangs pictures of (from R to L) Iran's Supreme Leader Ayatollah Ali Khamenei, founder of the Islamic Republic Ayatollah Ruhollah Khomeini and Lebanon's Hezbollah leader Sayyed Hassan Nasrallah, near
the site of an explosion in Beirut's southern suburbs, July 9, 2013. A car bomb exploded on Tuesday in a Beirut stronghold district of the Lebanese Hezbollah militant group that has been fighting in Syria's civil war, wounding at least 38 people, a hospital official told Reuters. REUTERS/Khalil Hassan (LEBANON - Tags: POLITICS CIVIL UNREST) 

An Iranian cleric living in Lebanon fills out his ballot sheet at a polling station at the Iranian embassy in Beirut June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be a sham. REUTERS/Jamal Saidi (LEBANON - Tags: POLITICS ELECTIONS) 

Iran's ambassador to Lebanon Ghazanfar Roknabadi casts his ballot at a polling station at the Iranian embassy in Beirut June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be a sham. REUTERS/Jamal Saidi (LEBANON - Tags: POLITICS ELECTIONS) 

An Iranian man shows his ink-stained finger as he casts his ballot at a polling station at the Iranian embassy in Beirut June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be a sham. REUTERS/Jamal Saidi (LEBANON - Tags: POLITICS ELECTIONS) 

A boy casts his mother's ballot at a polling station at the Iranian embassy in Beirut June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be a sham. REUTERS/Jamal Saidi (LEBANON - Tags: POLITICS ELECTIONS) 

A woman casts her ballot with her family at a polling station at the Iranian embassy in Beirut June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be a sham. REUTERS/Jamal Saidi (LEBANON - Tags: POLITICS ELECTIONS) 

A girl casts her mother's ballot at a polling station at the Iranian embassy in Beirut June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be a sham. REUTERS/Jamal Saidi (LEBANON - Tags: POLITICS ELECTIONS) 

A girl casts her mother's ballot at a polling station at the Iranian embassy in Beirut June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be a sham. REUTERS/Jamal Saidi (LEBANON - Tags: POLITICS ELECTIONS) 

An Iranian woman casts her ballot for the Iranian presidential election at the Iranian Consulate in Kerbala, 110 km (70 miles) south of Baghdad, June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be unfair. REUTERS/Mushtaq Muhammed (IRAQ - Tags: ELECTIONS POLITICS) 

Iranian women stand in line with their passports as they wait to vote for the Iranian presidential election at the Iranian Consulate in Kerbala, 110 km (70 miles) south of Baghdad, June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be unfair. REUTERS/Mushtaq Muhammed (IRAQ - Tags: ELECTIONS POLITICS) 

A Iranian woman gestures as she cast her ballot for the Iranian presidential election at the Iranian Consulate in Kerbala, 110 km (70 miles) south of Baghdad, June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be unfair. REUTERS/Mushtaq Muhammed (IRAQ - Tags: ELECTIONS POLITICS) 

An Iranian woman casts her ballot for the Iranian presidential election at the Iranian Consulate in Kerbala, 110 km (70 miles) south of Baghdad, June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be unfair. REUTERS/Mushtaq Muhammed (IRAQ - Tags: POLITICS ELECTIONS) 

Iranian women cast their ballots for the Iranian presidential election at the Iranian Consulate in Kerbala, 110 km (70 miles) south of Baghdad, June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be unfair. REUTERS/Mushtaq Muhammed (IRAQ - Tags: POLITICS ELECTIONS) 

An Iranian woman casts her ballot during the Iranian presidential election at a Shi'ite mosque in Baghdad's Kadhimiya district, June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be unfair. The country's 50 million eligible voters have a choice between six candidates to replace incumbent Mahmoud Ahmadinejad, but none is seen as challenging the Islamic Republic's 34-year-old system of clerical rule. REUTERS/Thaier al-Sudani (IRAQ - Tags: ELECTIONS POLITICS) 

Iranian women cast their ballots during the Iranian presidential election at a Shi'ite mosque in Baghdad's Kadhimiya district, June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be unfair. The country's 50 million eligible voters have a choice between six candidates to replace incumbent Mahmoud Ahmadinejad, but none is seen as challenging the Islamic Republic's 34-year-old system of clerical rule. REUTERS/Thaier al-Sudani (IRAQ - Tags: ELECTIONS POLITICS) 

An Iranian man casts his ballot during the Iranian presidential election at a Shi'ite mosque in Baghdad's Kadhimiya district, June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be unfair. The country's 50 million eligible voters have a choice between six candidates to replace incumbent Mahmoud Ahmadinejad, but none is seen as challenging the Islamic Republic's 34-year-old system of clerical rule. REUTERS/Thaier al-Sudani (IRAQ - Tags: ELECTIONS POLITICS) 

An Iranian woman casts her ballot during the Iranian presidential election at a Shi'ite mosque in Baghdad's Kadhimiya district, June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be unfair. The country's 50 million eligible voters have a choice between six candidates to replace incumbent Mahmoud Ahmadinejad, but none is seen as challenging the Islamic Republic's 34-year-old system of clerical rule. REUTERS/Thaier al-Sudani (IRAQ - Tags: ELECTIONS POLITICS) 

An Iranian man casts his ballot during the Iranian presidential election at a Shi'ite mosque in Baghdad's Kadhimiya district, June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be unfair. The country's 50 million eligible voters have a choice between six candidates to replace incumbent Mahmoud Ahmadinejad, but none is seen as challenging the Islamic Republic's 34-year-old system of clerical rule. REUTERS/Thaier al-Sudani (IRAQ - Tags: ELECTIONS POLITICS) 

An Iranian woman casts her ballot during the Iranian presidential election at a Shi'ite mosque in Baghdad's Kadhimiya district, June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be unfair. The country's 50 million eligible voters have a choice between six candidates to replace incumbent Mahmoud Ahmadinejad, but none is seen as challenging the Islamic Republic's 34-year-old system of clerical rule. REUTERS/Thaier al-Sudani (IRAQ - Tags: ELECTIONS POLITICS) 

An Iranian woman casts her ballot during the Iranian presidential election at a Shi'ite mosque in Baghdad's Kadhimiya district, June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be unfair. The country's 50 million eligible voters have a choice between six candidates to replace incumbent Mahmoud Ahmadinejad, but none is seen as challenging the Islamic Republic's 34-year-old system of clerical rule. REUTERS/Thaier al-Sudani (IRAQ - Tags: ELECTIONS POLITICS) 

An Iranian woman casts her ballot during the Iranian presidential election at a Shi'ite mosque in Baghdad's Kadhimiya district, June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be unfair. The country's 50 million eligible voters have a choice between six candidates to replace incumbent Mahmoud Ahmadinejad, but none is seen as challenging the Islamic Republic's 34-year-old system of clerical rule. REUTERS/Thaier al-Sudani (IRAQ - Tags: ELECTIONS POLITICS) 

A member of the election commission works during the Iranian presidential election at a Shi'ite mosque in Baghdad's Kadhimiya district, June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be unfair. The country's 50 million eligible voters have a choice between six candidates to replace incumbent Mahmoud Ahmadinejad, but none is seen as challenging the Islamic Republic's 34-year-old system of clerical rule. REUTERS/Thaier al-Sudani (IRAQ - Tags: ELECTIONS POLITICS) 

An Iranian woman looks at a poster of the Iranian Presidential candidates during the Iranian presidential election at a Shi'ite mosque in Baghdad's Kadhimiya district, June 14, 2013. Millions of Iranians voted to choose a new president on Friday, urged by Supreme Leader Ayatollah Ali Khamenei to turn out in force to discredit suggestions by arch foe the United States that the election would be unfair. The country's 50 million eligible voters have a choice between six candidates to replace incumbent Mahmoud Ahmadinejad, but none is seen as challenging the Islamic Republic's 34-year-old system of clerical rule. REUTERS/Thaier al-Sudani (IRAQ - Tags: ELECTIONS POLITICS)