British Conservative Party politicians Owen Paterson, David Trimble and Iain Duncan Smith talk to the media as they leave a meeting with European Union's chief Brexit negotiator Michel Barnier at the EU Commission headquarters in Brussels, Belgium, October 22, 2018. REUTERS/Francois Lenoir 

British Conservative Party politicians Owen Paterson, David Trimble and Iain Duncan Smith leave a meeting with European Union's chief Brexit negotiator Michel Barnier at the EU Commission headquarters in Brussels, Belgium, October 22, 2018. REUTERS/Francois Lenoir 

British Conservative Party politicians Owen Paterson, David Trimble and Iain Duncan Smith leave a meeting with European Union's chief Brexit negotiator Michel Barnier at the EU Commission headquarters in Brussels, Belgium, October 22, 2018. REUTERS/Francois Lenoir 

Britain's Prime Minister David Cameron chairs the first cabinet meeting following a ministerial re-shuffle, (L-R) Environment Secretary Owen Paterson, International Development Secretary Justine Greening, Communities Secretary Eric Pickles, Business Secretary Vince Cable, Cabinet Secretary Jeremy Heywood, Prime Minister David Cameron, Foreign Secretary William Hague, Health Secretary Jeremy Hunt, Energy Secretary Edward Davey, (obscured), Northern Ireland Secretary Theresa Villiers, Culture Secretary Maria Miller, education minister David Laws, universities minister David Willetts, Leader of the House of Lords Thomas Strathclyde, (obscured), Minister of State at the Cabinet Office, Oliver Letwin, Chief Whip Andrew Mitchell, Leader of the House Andrew Lansley, Home Secretary Theresa May, Chancellor of the Exchequer George Osborne, Deputy Prime Minister Nick Clegg (hidden), Chief Secretary to the Treasury Danny Alexander (hidden), Education Secretary Michael Gove, Justice Secretary Christopher Grayling, Conservative Party chairman Grant Shapps, in 10 Downing Street in London September 5, 2012. REUTERS/Neil Hall (BRITAIN - Tags: POLITICS) 

U.S. President Barack Obama (R) and British Prime Minister David Cameron walk after arriving at Wright-Patterson Air Force Base in Dayton, Ohio, March 13, 2012. Both leaders are in Ohio to attend the first round game of the NCAA Division I Men's Basketball Tournament at the University of Dayton Arena. REUTERS/Larry Downing (UNITED STATES - Tags: POLITICS) 

U.S. President Barack Obama and Britain's Prime Minister David Cameron (TOP L) arrive at Wright-Patterson Air Force Base in Dayton, Ohio, March 13, 2012. Both leaders are in Ohio to attend a first round game of the NCAA Division I Men's Basketball Tournament at the University of Dayton Arena. REUTERS/Larry Downing (UNITED STATES - Tags: POLITICS) 

U.S. President Barack Obama(R) waves next to Britain's Prime Minister David Cameron after arriving at Wright-Patterson Air Force Base in Dayton, Ohio, March 13, 2012. Both leaders are in Ohio to attend a first round game of the NCAA Division I Men's Basketball Tournament at the University of Dayton Arena. REUTERS/Larry Downing (UNITED STATES - Tags: POLITICS) 

Former New York Governor David Paterson (C) stops to talk to demonstrators from the Occupy Wall Street campaign in Zucotti Park near the financial district of New York September 29, 2011. After hundreds of protesters were denied access to some areas outside the New York Stock Exchange on September 17, demonstrators set up a rag-tag camp three blocks away. Zuccotti Park is a campground festooned with placards and anti-Wall Street slogans. The group is adding complaints of excessive police force against protesters and police treatment of ethnic minorities and Muslims to its grievances list, which includes bank bailouts, foreclosures and high unemployment. REUTERS/Lucas Jackson (UNITED STATES - Tags: BUSINESS CIVIL UNREST) 

New York's Governor Andrew Cuomo (R) hugs outgoing Governor David Paterson during a swearing-in ceremony at the Capitol in Albany, New York January 1, 2011. REUTERS/Mike Groll/Pool (UNITED STATES - Tags: POLITICS IMAGES OF THE DAY) 

Friends and family watch during New York Gov. David A. Paterson's announcement that Congresswoman Kirsten Gillibrand (D-NY) will succeed Secretary of State Hillary Clinton in the U.S. Senate during a news conference in Albany, New York, January 23, 2009. REUTERS/Hans Pennink (UNITED STATES) 

New York Gov. David Paterson (from L), Vice President Joe Biden, his wife Dr. Jill Biden, New York Mayor Michael Bloomberg, New Jersey Gov. Chris Christie and family members of victims leave flowers in the reflecting pool before the start of the ceremony for the ninth anniversary of the 9/11 attacks, at the site of Ground Zero in New York September 11, 2010. REUTERS/John Angelillo/Pool (UNITED STATES - Tags: POLITICS DISASTER ANNIVERSARY) 

U.S. Vice President Joe Biden walks towards a reflecting pool with his wife Jill (2nd R), New York City Mayor Michael Bloomberg (2nd L), New York Governor David Paterson (R) and New Jersey Governor Chris Christie (L) at Ground Zero during a ceremony marking the ninth anniversary of the September 11 attacks on the World Trade Center in New York September 11, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: DISASTER ANNIVERSARY POLITICS) 

U.S. Vice President Joe Biden (C) turns towards his wife Jill (2nd L) as he walks down a ramp with New York City Mayor Michael Bloomberg (L), New York Governor David Paterson (2nd R) and New Jersey Governor Chris Christie (R) at Ground Zero during a ceremony marking the ninth anniversary of the 9/11 attacks on the World Trade Center in New York September 11, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: DISASTER ANNIVERSARY POLITICS) 

U.S. Vice President Joe Biden (R) greets New York Governor David Paterson (L) and New Jersey Governor Chris Christie as he arrives at Ground Zero during a ceremony marking the ninth anniversary of the September 11 attacks on the World Trade Center in New York September 11, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: DISASTER ANNIVERSARY POLITICS) 

(L-R) Refections of New York Governor David Paterson, Vice President Joe Biden, his wife Dr. Jill Biden, New York Mayor Michael Bloomberg and New Jersey Governor Chris Christie are seen in the reflecting pool before the start of the ceremony of the ninth anniversary of the 9/11 attacks at the site of Ground Zero September 11, 2010. REUTERS/John Angelillo/Pool (UNITED STATES - Tags: MILITARY POLITICS DISASTER) 

U.S. Vice President Joe Biden (C) and his wife Jill (R) look up at 1 World Trade Center with New York Governor David Paterson (L) and New Jersey Governor Chris Christie at Ground Zero during the ceremony marking the ninth anniversary of the September 11 attacks on the World Trade Center in New York September 11, 2010. REUTERS/Lucas Jackson (UNITED STATES) 

U.S. Vice President Joe Biden walks towards a reflecting pool with New York Governor David Paterson (R) and New Jersey Governor Chris Christie (L) at Ground Zero during a ceremony marking the ninth anniversary of the September 11 attacks on the World Trade Center in New York September 11, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: DISASTER ANNIVERSARY POLITICS) 

U.S. Vice President Joe Biden (C) and his wife Jill (R) look up at 1 World Trade Center with New York Governor David Paterson (L) and New Jersey Governor Chris Christie at Ground Zero during the ceremony marking the ninth anniversary of the September 11 attacks on the World Trade Center in New York September 11, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: DISASTER ANNIVERSARY POLITICS) 

New York Governor David Paterson (L) and Mayor of New York City Michael Bloomberg attend a news conference at 7 World Trade Center in New York September 7, 2010. State and city leaders held an update of rebuilding efforts at the World Trade Center construction site. REUTERS/Eric Thayer (UNITED STATES - Tags: POLITICS BUSINESS CONSTRUCTION ANNIVERSARY) 

(L-R) New York Governor David Paterson, mayor of New York City Michael Bloomberg, Assembly Speaker Sheldon Silver, and Larry A. Silverstein, World Trade Center developer, attend a news conference at 7 World Trade Center in New York September 7, 2010. State and city leaders held an update of rebuilding efforts at the World Trade Center construction site. REUTERS/Eric Thayer (UNITED STATES - Tags: SPORT SOCCER) 

New York Governor David Paterson attends a news conference at 7 World Trade Center in New York September 7, 2010. State and city leaders held an update of rebuilding efforts at the World Trade Center construction site. REUTERS/Eric Thayer (UNITED STATES - Tags: BUSINESS CONSTRUCTION ANNIVERSARY) 

U.S. Democratic Representative Charles Rangel (L) stands with New York Governor David Paterson as they listen to New York Senator Charles Schumer (not in picture) during his 80th birthday and fund raiser at the Plaza Hotel in New York August 11, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: POLITICS) 

U.S. Democratic Representative Charles Rangel (R) laughs with New York Governor David Paterson (C), as they listen to New York City Mayor Michael Bloomberg during his 80th birthday and fund raiser at the Plaza Hotel in New York August 11, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: POLITICS) 

U.S. Democratic Representative Charles Rangel (L) listens to New York Governor David Paterson during his 80th birthday and fund raiser at the Plaza Hotel in New York August 11, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: POLITICS) 

U.S. Democratic Representative Charles Rangel gestures to a cheering audience in front of New York Governor David Paterson (R) during his 80th birthday and fund raiser at the Plaza Hotel in New York August 11, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: POLITICS) 

U.S. Democratic Representative Charles Rangel gestures to a cheering audience in front of New York Governor David Paterson (R) during his 80th birthday and fund raiser at the Plaza Hotel in New York August 11, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: POLITICS) 

U.S. Democratic Representative Charles Rangel gestures to a cheering audience in front of New York Governor David Paterson (R) and singer Chuck Jackson (2nd R) during his 80th birthday and fundraiser at the Plaza Hotel in New York August 11, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: POLITICS) 

New York Governor David Paterson smiles during a media conference in which Delta Airlines announced plans of a $1.2 billion enhancement and expansion of Terminal 4 at John F. Kennedy International Airport in New York August 11, 2010. REUTERS/Shannon Stapleton (UNITED STATES - Tags: TRANSPORT BUSINESS POLITICS) 

Britain's Queen Elizabeth (2nd L) smiles after greeting New York State Governor David Paterson (C) before dedicating a wreath of flowers at the site of the September 11, 2001 World Trade Center attack during her visit to New York, July 6, 2010. REUTERS/Lily Bowers (UNITED STATES - Tags: POLITICS ROYALS) 

Drosselmeyer jockey Mike Smith (C) poses for a picture with the trophy with New York Governor David Paterson, (L) Eliott Walden, (2nd from L), Lisa Troutt, (4th from L) trainer Bill Mott, (2nd from R) and Doug Cauthen (far R) after winning the the 142nd Belmont Stakes, the final leg of racing's Triple Crown at Belmont Park in Elmont, New York June 5, 2010. REUTERS/Jessica Rinaldi (UNITED STATES - Tags: SPORT HORSE RACING) 

Britain's Prime Minister David Cameron (L) and Britain's Secretary of State for Northern Ireland Owen Paterson leave Stormont Castle after a meeting in Belfast, Northern Ireland May 20, 2010 REUTERS/Cathal McNaughton (NORTHERN IRELAND - Tags: POLITICS) 

Britain's Prime Minister David Cameron (L) and Britain's Secretary of State for Northern Ireland Owen Paterson leave Stormont Castle after a meeting in Belfast, Northern Ireland May 20, 2010 REUTERS/Cathal McNaughton (NORTHERN IRELAND - Tags: POLITICS) 

Britain's new cabinet (front row L-R) Iain Duncan Smith, Liam Fox, George Osborne, William Hague, David Cameron, Nick Clegg, Sayeeda Warsi, Cheryl Gillan, Caroline Spelman, Ken Clarke, David Laws, (Back rows L-R) Patrick McLoughlin, Theresa May, David Willetts, Oliver Letwin, Vince Cable, Francis Maude, Eric Piccles, Tom Strathclyde, Andrew Lansley, George Young, Michael Gove, Andrew Mitchell, Philip Hammond, Chris Huhne, Jeremy Hunt, Owen Paterson, Danny Alexander, Dominic Grieve, Gus O'Donnell pose for a group picture in the garden of number 10 Downing Street after their first cabinet meeting in London May 13, 2010. REUTERS/Andrew Winning (BRITAIN - Tags: POLITICS ELECTIONS IMAGES OF THE DAY) 

Secretary of State for Northern Ireland Owen Paterson arrives at the 10 Downing Street official residence of Britain's Prime Minister David Cameron in London May 12, 2010. Britain's first coalition government since 1945 unveiled its ministerial team on Wednesday and said it would speed up efforts to cut the country's budget deficit as it emerges from a deep recession. REUTERS/Cathal McNaughton (BRITAIN - Tags: POLITICS ELECTIONS) 

New York Mayor Michael Bloomberg (L), Rep. Carolyn Maloney (D-NY) and Governor of New York David Paterson attend a speech by U.S. President Barack Obama on Wall Street reform at Cooper Union in New York City, April 22, 2010. REUTERS/Jim Young (UNITED STATES - Tags: POLITICS BUSINESS) 

New York Mayor, Michael Bloomberg (L), New York Governor David Paterson (C), and real estate developer Bruce Ratner listen to speakers during a ground breaking ceremony for the Barclays Center arena in the Brooklyn borough of New York March 11, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: BUSINESS CONSTRUCTION) 

New York Governor David Paterson speaks during a ground breaking ceremony for the Barclays Center arena in the Brooklyn borough of New York March 11, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: BUSINESS CONSTRUCTION) 

New York Governor David Paterson speaks during a ground breaking ceremony for the Barclays Center arena in the Brooklyn borough of New York March 11, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: BUSINESS CONSTRUCTION) 

Real estate developer, Bruce Ratner (R), speaks with New York Governor David Paterson during a ground breaking ceremony for the Barclays Center arena in the Brooklyn borough of New York March 11, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: BUSINESS CONSTRUCTION) 

Real Estate Developer Bruce Ratner (L) breaks ground on the new Barclay's Center in Brooklyn with (L-R) New York Mayor Michael Bloomberg, Governor David Paterson, Brooklyn Borough President Marty Markowitz, entertainer Jay-Z, community advocate Delia Hunley-Adossa and Barclays PLC president Robert Diamond in New York March 11, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: ENTERTAINMENT BUSINESS CONSTRUCTION) 

Real Estate Developer Bruce Ratner (L) breaks ground on the new Barclay's Center in Brooklyn with (L-R) New York Mayor Michael Bloomberg, Governor David Paterson, Brooklyn Borough President Marty Markowitz, entertainer Jay-Z, community advocate Delia Hunley-Adossa, Barclays PLC president Robert Diamond, and New Jersey Nets CEO Brett Yormark in New York March 11, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: ENTERTAINMENT BUSINESS CONSTRUCTION) 

Real Estate Developer Bruce Ratner (L) breaks ground on the new Barclay's Center in Brooklyn with New York Mayor Michael Bloomberg (2nd L), Governor David Paterson (C), Brooklyn Borough President Marty Markowitz (2nd R), and entertainer Jay-Z (R) in New York March 11, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: POLITICS BUSINESS) 

New York Gov. David Paterson, with his wife Michelle Paige-Patterson standing by him, announces he will withdraw from the state governor's race at his office in New York, February 26, 2010. REUTERS/Jessica Rinaldi (UNITED STATES - Tags: POLITICS) 

New York Gov. David Paterson, with his wife Michelle Paige-Patterson standing by him, announces he will withdraw from the state governor's race at his office in New York, February 26, 2010. REUTERS/Jessica Rinaldi (UNITED STATES - Tags: POLITICS) 

New York Governor David Paterson arrives at a news conference announcing that he is ending his election campaign in New York, February 26, 2010. Paterson faced reports that he and the State Police had intervened in a domestic violence allegation against a senior aide. REUTERS/Brendan McDermid (UNITED STATES - Tags: POLITICS) 

Staff members of New York Gov. David Patterson look on as Patterson (not pictured) announces that he is ending his election campaign in New York, February 26, 2010. Paterson faced reports that he and the State Police had intervened in a domestic violence allegation against a senior aide. REUTERS/Jessica Rinaldi (UNITED STATES - Tags: POLITICS) 

New York Gov. David Paterson (2nd R) is followed by his wife Michelle Paige-Patterson as he departs a news conference after he announced he was withdrawing from the state governor's race at his office in New York, February 26, 2010. REUTERS/Jessica Rinaldi (UNITED STATES - Tags: POLITICS) 

New York Gov. David Paterson, with his wife Michelle Paige-Patterson standing by him, announces he will withdraw from the state governor's race at his office in New York, February 26, 2010. REUTERS/Brendan McDermid (UNITED STATES - Tags: POLITICS) 

New York Governor David Paterson announces he will withdraw from the state governor's race while his wife looks on at his office in New York, February 26, 2010. Paterson faced reports that he and the State Police had intervened in a domestic violence allegation against a senior aide. REUTERS/Jessica Rinaldi (UNITED STATES - Tags: POLITICS) 

New York Governor David Paterson leaves with his wife Michelle after announcing at a news conference that he is ending his election campaign in New York, February 26, 2010. Paterson faced reports that he and the State Police had intervened in a domestic violence allegation against a senior aide. REUTERS/Brendan McDermid (UNITED STATES - Tags: POLITICS) 

New York Governor David Paterson arrives with his wife Michelle at a news conference announcing that he is ending his election campaign in New York, February 26, 2010. Paterson faced reports that he and the State Police had intervened in a domestic violence allegation against a senior aide. REUTERS/Brendan McDermid (UNITED STATES - Tags: POLITICS) 

New York Gov. David Paterson announces at a news conference that he is ending his election campaign in New York, February 26, 2010. Paterson faced reports that he and the State Police had intervened in a domestic violence allegation against a senior aide. REUTERS/Brendan McDermid (UNITED STATES - Tags: POLITICS HEADSHOT) 

New York Gov. David Paterson announces at a news conference that he is ending his election campaign in New York, February 26, 2010. Paterson faced reports that he and the State Police had intervened in a domestic violence allegation against a senior aide. REUTERS/Brendan McDermid (UNITED STATES - Tags: POLITICS) 

New York Governor David Paterson announces at a news conference that he is ending his election campaign in New York, February 26, 2010. Paterson faced reports that he and the State Police had intervened in a domestic violence allegation against a senior aide. REUTERS/Brendan McDermid (UNITED STATES - Tags: POLITICS) 

New York Gov. David Paterson announces at a news conference that he is ending his election campaign in New York, February 26, 2010. Paterson faced reports that he and the State Police had intervened in a domestic violence allegation against a senior aide. REUTERS/Brendan McDermid (UNITED STATES - Tags: POLITICS) 

New York Governor David Paterson announces at a news conference that he is ending his election campaign in New York, February 26, 2010. Paterson faced reports that he and the State Police had intervened in a domestic violence allegation against a senior aide. REUTERS/Brendan McDermid (UNITED STATES - Tags: POLITICS) 

New York Gov. David Paterson, with his wife Michelle Paige-Patterson standing by him, announces he will withdraw from the state governor's race at his office in New York, February 26, 2010. REUTERS/Brendan McDermid (UNITED STATES - Tags: POLITICS) 

New York Governor David Paterson announces at a news conference that he is ending his election campaign in New York, February 26, 2010. Paterson faced reports that he and the State Police had intervened in a domestic violence allegation against a senior aide. REUTERS/Brendan McDermid (UNITED STATES - Tags: POLITICS) 

New York Gov. David Paterson announces at a news conference that he is ending his election campaign in New York, February 26, 2010. Paterson faced reports that he and the State Police had intervened in a domestic violence allegation against a senior aide. REUTERS/Brendan McDermid (UNITED STATES - Tags: POLITICS) 

New York Gov. David Paterson announces he will withdraw from the state governor's race at his office in New York, February 26, 2010. REUTERS/Brendan McDermid (UNITED STATES - Tags: POLITICS)