U.S. President Joe Biden takes off his protective facemask prior to speaking with the media during arrival for the EU-US summit at the European Council building in Brussels, Tuesday, June 15, 2021. (AP Photo/Francisco Seco)

U.S. President Joe Biden speaks during the EU-US summit at the European Council building in Brussels, Tuesday, June 15, 2021. (AP Photo/Francisco Seco)

U.S. President Joe Biden speaks with the media as he arrives for the EU-US summit at the European Council building in Brussels, Tuesday, June 15, 2021. (AP Photo/Francisco Seco)

President Joe Biden, center, walks with European Council President Charles Michel, right, and European Commission President Ursula von der Leyen during the United States-European Union Summit at the European Council in Brussels, Tuesday, June 15, 2021. (AP Photo/Patrick Semansky)

US president Joe Biden arrives in Geneva, Switzerland, Tuesday, June 15, 2021 one day before the US - Russia summit. The meeting between US President Joe Biden and Russian President Vladimir Putin is scheduled in Geneva for Wednesday, June 16, 2021. (Martial Trezzini/Keystone via AP, Pool)

President Joe Biden, center, walks with European Council President Charles Michel, right, and European Commission President Ursula von der Leyen during the United States-European Union Summit at the European Council in Brussels, Tuesday, June 15, 2021. (AP Photo/Patrick Semansky)

European Council President Charles Michel, right, and U.S. President Joe Biden speak with the media as they arrive for the EU-US summit at the European Council building in Brussels, Tuesday, June 15, 2021. (AP Photo/Francisco Seco)

President Joe Biden, center, talks to the media with European Council President Charles Michel, right, and European Commission President Ursula von der Leyen, during the United States-European Union Summit at the European Council in Brussels, Tuesday, June 15, 2021. (AP Photo/Patrick Semansky)

U.S. President Joe Biden attends the EU-US summit at the European Council building in Brussels, Tuesday, June 15, 2021. (AP Photo/Francisco Seco)

A man wearing a Vladimir Putin mask takes part in a demonstration for imprisoned Alexei Navalny, poster at left, in Geneva, Switzerland Tuesday, June 15, 2021. US President Joe Biden and Russia President Vladimir Putin will meet for talks in Geneva on Wednesday. (AP Photo/Michael Probst)

President Joe Biden boards Air Force One at Brussels Airport in Brussels, Tuesday, June 15, 2021. Biden is en route to Geneva. (AP Photo/Patrick Semansky)

European Commission President Ursula von der Leyen, left, speaks witih U.S. President Joe Biden during arrival for the EU-US summit at the European Council building in Brussels, Tuesday, June 15, 2021. (AP Photo/Francisco Seco)

President Joe Biden and Swiss President Guy Parmelin, walk to Biden's car after Biden arrived at the Geneva Airport in Geneva, Switzerland, Tuesday, June 15, 2021. Biden is scheduled to meet with Russian President Vladimir Putin in Geneva, Wednesday, June 16, 2021. (AP Photo/Patrick Semansky)