FILE - Britain's Prime Minister Rishi Sunak right, reaches to shake hands with President of France Emmanuel Macron ahead of a bilateral meeting during the COP27 summit, in Sharm el-Sheikh, Egypt, Nov. 7, 2022. (Stefan Rousseau/Pool Photo via AP, File)

FILE - Britain's King Charles III speaks with Prime Minister Rishi Sunak during a reception at Buckingham Palace, London, Nov. 4, 2022, ahead of the COP27 Summit. (Jonathan Brady/Pool Photo via AP, File)

FILE - Britain's Prime Minister Rishi Sunak and Chancellor Jeremy Hunt visit Accrington Market Hall, Jan. 19, 2023 in Accrington, England. (Christopher Furlong/Pool Photo via AP, File)

FILE - British Prime Minister Rishi Sunak speaks during a press conference at Downing Street in London, Monday, April 22, 2024. (Toby Melville/Pool Photo via AP, File)

FILE - Rishi Sunak, centre, gestures as conservative MPs greet him after arriving at the Conservative Party leadership contest at the Conservative party Headquarters in London, Oct. 24, 2022. (AP Photo/Alberto Pezzali, File)

FILE - Britain's Prime Minister Rishi Sunak, left, and Britain's Home Secretary Suella Braverman, attend a meeting with the local community and police leaders following the announcement of a new police task force to help officers tackle grooming gangs, in Rochdale, England, Monday, April 3, 2023. (Phil Noble/Pool Photo via AP, File)

FILE - New British Prime Minister Rishi Sunak speaks at Downing Street in London, Tuesday, Oct. 25, 2022, after returning from Buckingham Palace where he was formally appointed to the post by Britain's King Charles III. (AP Photo/Frank Augstein, File)

FILE - In this Tuesday, Sept. 1, 2020 file photo, Britain's Prime Minister Boris Johnson and Chancellor Rishi Sunak, left, leave Downing Street to attend a cabinet meeting in London. (AP Photo/Kirsty Wigglesworth, File)