New French prime minister Michel Barnier looks on right during the handover ceremony, Thursday, Sept. 5, 2024 in Paris. President Emmanuel Macron has named EU's Brexit negotiator Michel Barnier as France's new prime minister after more than 50 days of caretaker government. (Stephane de Sakutin/Pool Photo via AP)

New French prime minister Michel Barnier, right, and outgoing prime minister Gabriel Attal deliver a speech during the handover ceremony, Thursday, Sept. 5, 2024 in Paris. President Emmanuel Macron has named EU's Brexit negotiator Michel Barnier as France's new prime minister after more than 50 days of caretaker government. (AP Photo/Michel Euler)

New French prime minister Michel Barnier, right, is greeted by France's outgoing Minister for Labour, Health and Solidarities Catherine Vautrin, left, during the handover ceremony, Thursday, Sept. 5, 2024 in Paris. President Emmanuel Macron has named EU's Brexit negotiator Michel Barnier as France's new prime minister after more than 50 days of caretaker government. (Stephane de Sakutin/Pool Photo via AP)

New French prime minister Michel Barnier, right, and outgoing prime minister Gabriel Attal, left, deliver a speech during the handover ceremony, Thursday, Sept. 5, 2024 in Paris. President Emmanuel Macron has named EU's Brexit negotiator Michel Barnier as France's new prime minister after more than 50 days of caretaker government. (Stephane de Sakutin/Pool Photo via AP)