President Joe Biden is greeted by German President Frank-Walter Steinmeier, right, during the welcoming ceremony at Bellevue Palace in Berlin, Germany, Friday, Oct. 18, 2024. (AP Photo/Ben Curtis)

President Joe Biden signs a guest book during the welcoming ceremony at Bellevue Palace in Berlin, Germany, Friday, Oct. 18, 2024. (AP Photo/Ben Curtis)

German President Frank-Walter Steinmeier and President Joe Biden hold a bilateral meeting at Bellevue Palace in Berlin, Germany, Friday, Oct. 18, 2024. (Axel Schmidt/Pool Photo via AP)

President Joe Biden and German President Frank-Walter Steinmeier inspect the military honour guard during the welcoming ceremony at Bellevue Palace in Berlin, Germany, Friday, Oct. 18, 2024. (AP Photo/Ebrahim Noroozi)

President Joe Biden is welcomed by German President Frank-Walter Steinmeier during the welcoming ceremony at Bellevue Palace in Berlin, Germany, Friday, Oct. 18, 2024. (AP Photo/Matthias Schrader)

President Joe Biden is welcomed by German President Frank-Walter Steinmeier during the welcoming ceremony at Bellevue Palace in Berlin, Germany, Friday, Oct. 18, 2024. (AP Photo/Matthias Schrader)

President Joe Biden receives Germany's Grand Cross special class of the Order of Merit by German President Frank-Walter Steinmeier at Bellevue Palace in Berlin, Germany, Friday, Oct. 18, 2024. (AP Photo/Matthias Schrader)

Workers of automotive sector march during a demonstration in Rome on the occasion of their national strike, Friday, Oct. 18, 2024. (AP Photo/Gregorio Borgia)