Walloon Minister President Elio Di Rupo attends a news conference after a government meeting to announce new coronavirus-related measures in Brussels, Belgium June 18, 2021. Bert Van Den Broucke/Pool via REUTERS 

Walloon Minister President Elio Di Rupo, Belgium's Prime Minister Alexander De Croo and Flemish Minister President Jan Jambon attend a news conference after a government meeting to announce new coronavirus-related measures in Brussels, Belgium June 18, 2021. Bert Van Den Broucke/Pool via REUTERS 

Walloon Minister President Elio Di Rupo, Belgium's Prime Minister Alexander De Croo and Flemish Minister President Jan Jambon attend a news conference after a government meeting to announce new coronavirus-related measures in Brussels, Belgium June 18, 2021. Bert Van Den Broucke/Pool via REUTERS 

Walloon Minister President Elio Di Rupo, Belgium's Prime Minister Alexander De Croo and Flemish Minister President Jan Jambon attend a news conference after a government meeting to announce new coronavirus-related measures in Brussels, Belgium June 18, 2021. Bert Van Den Broucke/Pool via REUTERS 

Walloon Minister President Elio Di Rupo attends a news conference after a government meeting to announce the new coronavirus disease (COVID-19) related measures in Brussels, Belgium June 4, 2021. REUTERS/Johanna Geron/Pool 

Walloon Minister President Elio Di Rupo attends a news conference after a government meeting to announce the new coronavirus disease (COVID-19) related measures in Brussels, Belgium June 4, 2021. REUTERS/Johanna Geron/Pool 

Walloon Minister President Elio Di Rupo, Belgium's Prime Minister Alexander De Croo and Hilde Crevits attend a news conference after a government meeting to announce the new coronavirus disease (COVID-19) related measures in Brussels, Belgium June 4, 2021. REUTERS/Johanna Geron/Pool 

Walloon Minister President Elio Di Rupo and Belgium's Prime Minister Alexander De Croo attend a news conference after a government meeting to announce the new coronavirus disease (COVID-19) related measures in Brussels, Belgium June 4, 2021. REUTERS/Johanna Geron/Pool 

Walloon Minister President Elio Di Rupo, Belgium's Prime Minister Alexander De Croo and Hilde Crevits attend a news conference after a government meeting to announce new coronavirus disease (COVID-19) related measures in Brussels, Belgium June 4, 2021. REUTERS/Johanna Geron/Pool 

Walloon Minister President Elio Di Rupo attends a news conference after a government meeting to announce new coronavirus disease (COVID-19) related measures in Brussels, Belgium June 4, 2021. REUTERS/Johanna Geron/Pool 

Walloon Minister President Elio Di Rupo and Belgian Prime Minister Alexander De Croo attend a news conference after a meeting of the consultative committee with ministers of the federal government, the regional governments and the community governments in Brussels, Belgium March 24, 2021. The meeting discussed possible tightening of COVID-19 prevention measures, as infections are once again on the rise. Benoit Doppagne/Pool via REUTERS TPX IMAGES OF THE DAY 

Walloon Minister President Elio Di Rupo, Prime Minister Alexander De Croo and Flemish Minister President Jan Jambon prepare for a news conference after a meeting of the consultative committee with ministers of the federal government, the regional governments and the community governments in Brussels, Belgium March 24, 2021. The meeting discussed possible tightening of COVID-19 prevention measures, as infections are once again on the rise. Benoit Doppagne/Pool via REUTERS 

Walloon Minister President Elio Di Rupo, Prime Minister Alexander De Croo and Flemish Minister President Jan Jambon pictured at the start of a news conference after a meeting of the consultative committee with ministers of the federal government, the regional governments and the community governments in Brussels, Belgium March 24, 2021. The meeting discussed possible tightening of COVID-19 prevention measures, as infections are once again on the rise. Benoit Doppagne/Pool via REUTERS 

A woman holds a placard with pictures of Walloon Region Minister President Elio Di Rupo and Brussels Region Minister President Rudi Vervoort during a protest against the government-ordered closure of bars and restaurants and hotels in Belgium, amid the outbreak of the coronavirus disease (COVID-19) in Brussels, Belgium, March 15, 2021. The writing on the placard reads: "Killers of Horeca". REUTERS/Yves Herman 

Belgian Minister-President of Wallonia, Elio Di Rupo, attends a news conference after a government meeting to announce new coronavirus disease (COVID-19) related restrictions in Brussels, Belgium March 5, 2021. Olivier Matthys/Pool via REUTERS 

Belgian Walloon Region Minister President Elio Di Rupo and Prime Minister Alexander De Croo attend a news conference after a government meeting to announce new coronavirus disease (COVID-19) related restrictions in Brussels, Belgium February 26, 2021. REUTERS/Johanna Geron/Pool 

Belgian Walloon Region Minister President Elio Di Rupo, Prime Minister Alexander De Croo and Flemish Region Minister President Jan Jambon attend a news conference after a government meeting to announce new coronavirus disease (COVID-19) related restrictions in Brussels, Belgium February 26, 2021. REUTERS/Johanna Geron/Pool 

Belgian Walloon Region Minister President Elio Di Rupo attends a news conference after a government meeting to announce new coronavirus disease (COVID-19) related restrictions in Brussels, Belgium February 26, 2021. REUTERS/Johanna Geron/Pool 

Belgian Walloon Region Minister President Elio Di Rupo attends a news conference after a government meeting to announce new coronavirus disease (COVID-19) related restrictions in Brussels, Belgium February 26, 2021. REUTERS/Johanna Geron/Pool 

Belgian Minister-President of Wallonia Elio Di Rupo wearing a protective mask arrives at a news conference after a government meeting to announce new coronavirus disease (COVID-19) related restrictions as Belgium becomes most infected EU state, in Brussels, Belgium October 30, 2020. Philip Reynaers/Pool via Reuters 

Belgium's Prime Minister Alexander De Croo holds a joint news conference with Minister-President of Wallonia Elio Di Rupo and Minister-President of Flanders Jan Jambon after a government meeting to announce new coronavirus disease (COVID-19) related restrictions as Belgium becomes most infected EU state, in Brussels, Belgium October 30, 2020. Philip Reynaers/Pool via Reuters 

Belgian Minister-President of Wallonia Elio Di Rupo attends a news conference after a meeting of the National Security Council, amid the coronavirus disease (COVID-19) outbreak, in Brussels, Belgium August 20, 2020. Olivier Matthys/Pool via REUTERS 

Belgian Minister-President of Wallonia Elio Di Rupo attends a news conference after a meeting of the National Security Council, amid the coronavirus disease (COVID-19) outbreak, in Brussels, Belgium August 20, 2020. Olivier Matthys/Pool via REUTERS 

Belgian Minister-President of Wallonia Elio Di Rupo attends a news conference after a meeting of the National Security Council, amid the coronavirus disease (COVID-19) outbreak, in Brussels, Belgium August 20, 2020. Olivier Matthys/Pool via REUTERS 

Belgian Minister-President of Wallonia Elio Di Rupo attends a news conference after a meeting of the National Security Council, amid the coronavirus disease (COVID-19) outbreak, in Brussels, Belgium August 20, 2020. Olivier Matthys/Pool via REUTERS 

Belgium's Prime Minister Sophie Wilmes and Minister-President of Wallonia Elio Di Rupo attend a news conference after a meeting of the National Security Council, amid the coronavirus disease (COVID-19) outbreak, in Brussels, Belgium August 20, 2020. Olivier Matthys/Pool via REUTERS 

Belgian Minister-President of Wallonia Elio Di Rupo attends a news conference after a meeting of the National Security Council, amid the coronavirus disease (COVID-19) outbreak, in Brussels, Belgium August 20, 2020. Olivier Matthys/Pool via REUTERS 

Belgium's Prime Minister Sophie Wilmes and Minister-President of Wallonia Elio Di Rupo attend a news conference after a meeting of the National Security Council, amid the coronavirus disease (COVID-19) outbreak, in Brussels, Belgium August 20, 2020. Olivier Matthys/Pool via REUTERS 

Belgian Minister-President of Wallonia Elio Di Rupo attends a news conference after a meeting of the National Security Council amid the coronavirus disease (COVID-19) outbreak in Brussels, Belgium July 23, 2020. Dirk Waem/Pool via REUTERS 

From L-R, former Belgian Prime Minister Elio Di Rupo, Danish ambassador Anne Dorte Riggelsen, French Prime Minister Manuel Valls, Speaker of the French Parliament Claude Bartolone, and French Socialist party head Jean-Christophe Cambadelis gather at the Danish embassy in Paris before a tribute February 16, 2015. Police in Denmark said on Monday they had charged two people with aiding the man suspected of shooting dead two people in attacks on a synagogue and an event promoting free speech in Copenhagen at the weekend. REUTERS/Etienne Laurent/Pool (FRANCE - Tags: POLITICS CRIME LAW) 

Former Belgian Prime Minister Elio Di Rupo and Laurette Onkelinx (L) of the Francophone Socialist party (PS) react during the state-of-the-union address of Belgium's Prime Minister Charles Michel at the Belgian Parliament in Brussels October 14, 2014. REUTERS/Francois Lenoir (BELGIUM - Tags: POLITICS) 

Belgium's new Prime Minister Charles Michel (L) receives the key of the office from outgoing Prime Minister Elio Di Rupo (R) in Brussels October 11, 2014. Belgium's new centre-right government took office on Saturday, promising to raise the retirement age and slash costs by about 8 billion euros ($10 billion) to balance the national budget by 2018 and cut the country's debt. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS) 

Belgium's new Prime Minister Charles Michel (L) and outgoing Prime Minister Elio Di Rupo (R) exchange a present in the prime minister office in Brussels October 11, 2014. Belgium's new centre-right government took office on Saturday, promising to raise the retirement age and slash costs by about 8 billion euros ($10 billion) to balance the national budget by 2018 and cut the country's debt. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS) 

Belgium's new Prime Minister Charles Michel (L) and outgoing Prime Minister Elio Di Rupo (R) exchange a present in the prime minister office in Brussels October 11, 2014. Belgium's new centre-right government took office on Saturday, promising to raise the retirement age and slash costs by about 8 billion euros ($10 billion) to balance the national budget by 2018 and cut the country's debt. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS) 

Belgium's new Prime Minister Charles Michel (L) and outgoing Prime Minister Elio Di Rupo (R) arrive in the prime minister's office in Brussels October 11, 2014. Belgium's new centre-right government took office on Saturday, promising to raise the retirement age and slash costs by about 8 billion euros ($10 billion) to balance the national budget by 2018 and cut the country's debt. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS) 

Belgium's new Prime Minister Charles Michel (R) and outgoing Prime Minister Elio Di Rupo enter the Prime Minster's office in Brussels October 11, 2014. Belgium's new federal government is formed by a centre-right coalition of liberals, Christian Democrats and a Flemish regional, including Flemish nationalist party N-VA. REUTERS/Eric Vidal (BELGIUM - Tags: POLITICS) 

Belgium's new Prime Minister Charles Michel (L) and outgoing Prime Minister Elio Di Rupo (R) greet reporters in the prime minister's office in Brussels October 11, 2014. Belgium's new centre-right government took office on Saturday, promising to raise the retirement age and slash costs by about 8 billion euros ($10 billion) to balance the national budget by 2018 and cut the country's debt. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS) 

Belgium's new Prime Minister Charles Michel (L) receives the key of the office from outgoing Prime Minister Elio Di Rupo (R) in Brussels October 11, 2014. Belgium's new centre-right government took office on Saturday, promising to raise the retirement age and slash costs by about 8 billion euros ($10 billion) to balance the national budget by 2018 and cut the country's debt. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS) 

Belgium's outgoing Prime Minister Elio Di Rupo leaves the prime minister's office after a changeover ceremony in Brussels October 11, 2014. Belgium's new centre-right government, led by new Belgian Prime Minister Charles Michel, took office on Saturday, promising to raise the retirement age and slash costs by about 8 billion euros ($10 billion) to balance the national budget by 2018 and cut the country's debt. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS) 

Belgium's new Prime Minister Charles Michel (L) receives the key of the office from outgoing Prime Minister Elio Di Rupo (R) in Brussels October 11, 2014. Belgium's new centre-right government took office on Saturday, promising to raise the retirement age and slash costs by about 8 billion euros ($10 billion) to balance the national budget by 2018 and cut the country's debt. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS) 

Belgium's new Prime Minister Charles Michel (L) receives the key of the office from outgoing Prime Minister Elio Di Rupo (R) in Brussels October 11, 2014. Belgium's new centre-right government took office on Saturday, promising to raise the retirement age and slash costs by about 8 billion euros ($10 billion) to balance the national budget by 2018 and cut the country's debt. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS) 

Belgium's new Prime Minister Charles Michel (R) shakes hands with outgoing Prime Minister Elio Di Rupo in Brussels October 11, 2014. Belgium's new federal government is formed by a centre-right coalition of liberals, Christian Democrats and a Flemish regional, including Flemish nationalist party N-VA. REUTERS/Eric Vidal (BELGIUM - Tags: POLITICS) 

Belgium's new Prime Minister Charles Michel (R) shakes hands with outgoing Prime Minister Elio Di Rupo in Brussels October 11, 2014. Belgium's new federal government is formed by a centre-right coalition of liberals, Christian Democrats and a Flemish regional, including Flemish nationalist party N-VA. REUTERS/Eric Vidal (BELGIUM - Tags: POLITICS) 

Belgium's new Prime Minister Charles Michel (R) shakes hands with outgoing Prime Minister Elio Di Rupo in Brussels October 11, 2014. Belgium's new federal government is formed by a centre-right coalition of liberals, Christian Democrats and a Flemish regional, including Flemish nationalist party N-VA. REUTERS/Eric Vidal (BELGIUM - Tags: POLITICS) 

Belgium's new Prime Minister Charles Michel (R) shakes hands with outgoing Prime Minister Elio Di Rupo in Brussels October 11, 2014. Belgium's new federal government is formed by a centre-right coalition of liberals, Christian Democrats and a Flemish regional, including Flemish nationalist party N-VA. REUTERS/Eric Vidal (BELGIUM - Tags: POLITICS) 

Belgium's outgoing Prime Minister Elio Di Rupo walks in front of members of his cabinet during a farewell ceremony in Brussels October 10, 2014. Belgium's new federal government, a centre-right coalition of liberals, Christian Democrats and a Flemish regional party, will be sworn in on Saturday, the Royal Palace said. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS) 

Belgium's outgoing Prime Minister Elio Di Rupo walks in front of members of his cabinet during a farewell ceremony in Brussels October 10, 2014. Belgium's new federal government, a centre-right coalition of liberals, Christian Democrats and a Flemish regional party, will be sworn in on Saturday, the Royal Palace said. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS) 

Belgium's outgoing Prime Minister Elio Di Rupo (L) holds a speech while members of his cabinet react during a farewell ceremony in Brussels October 10, 2014. Belgium's new federal government, a centre-right coalition of liberals, Christian Democrats and a Flemish regional party, will be sworn in on Saturday, the Royal Palace said. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS) 

Belgium's outgoing Prime Minister Elio Di Rupo is applauded by members of his cabinet during a farewell ceremony in Brussels October 10, 2014. Belgium's new federal government, a centre-right coalition of liberals, Christian Democrats and a Flemish regional party, will be sworn in on Saturday, the Royal Palace said. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS) 

Belgium's outgoing Prime Minister Elio Di Rupo holds a speech during a farewell ceremony in Brussels October 10, 2014. Belgium's new federal government, a centre-right coalition of liberals, Christian Democrats and a Flemish regional party, will be sworn in on Saturday, the Royal Palace said. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS HEADSHOT) 

Belgium's outgoing Prime Minister Elio Di Rupo holds a speech during a farewell ceremony in Brussels October 10, 2014. Belgium's new federal government, a centre-right coalition of liberals, Christian Democrats and a Flemish regional party, will be sworn in on Saturday, the Royal Palace said. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS HEADSHOT) 

Belgium's outgoing Prime Minister Elio Di Rupo (L) holds a speech while members of his cabinet react during a farewell ceremony in Brussels October 10, 2014. Belgium's new federal government, a centre-right coalition of liberals, Christian Democrats and a Flemish regional party, will be sworn in on Saturday, the Royal Palace said. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS) 

Belgium's outgoing Prime Minister Elio Di Rupo is applauded by members of his cabinet during a farewell ceremony in Brussels October 10, 2014. Belgium's new federal government, a centre-right coalition of liberals, Christian Democrats and a Flemish regional party, will be sworn in on Saturday, the Royal Palace said. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS) 

Elio Di Rupo, Prime Minister of Belgium, addresses the 69th United Nations General Assembly at the U.N. headquarters in New York September 26, 2014. REUTERS/Lucas Jackson (UNITED STATES - Tags: POLITICS)

Elio Di Rupo, Prime Minister of Belgium, addresses the 69th United Nations General Assembly at the U.N. headquarters in New York September 26, 2014. REUTERS/Lucas Jackson (UNITED STATES - Tags: POLITICS)

Elio Di Rupo, Prime Minister of Belgium, addresses the 69th United Nations General Assembly at the U.N. headquarters in New York September 26, 2014. REUTERS/Lucas Jackson (UNITED STATES - Tags: POLITICS)

Elio Di Rupo, Prime Minister of Belgium, addresses the 69th United Nations General Assembly at the U.N. headquarters in New York September 26, 2014. REUTERS/Lucas Jackson (UNITED STATES - Tags: POLITICS)

Elio Di Rupo, Prime Minister of Belgium, addresses the 69th United Nations General Assembly at the U.N. headquarters in New York September 26, 2014. REUTERS/Lucas Jackson (UNITED STATES - Tags: POLITICS)

Elio Di Rupo, Prime Minister of Belgium, addresses the 69th United Nations General Assembly at the U.N. headquarters in New York September 26, 2014. REUTERS/Lucas Jackson (UNITED STATES - Tags: POLITICS)

A Belgian police officer wearing a mask depicting Belgian Prime Minister Elio Di Rupo (R) takes part in a demonstration in central Brussels September 18, 2014. Several thousand policemen are demanding to keep their right to choose to retire before the age of 62. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS CRIME LAW BUSINESS EMPLOYMENT CIVIL UNREST)