European Commission President Ursula von der Leyen speaks during the closing ceremony of the EU summit at the Alfandega do Porto Congress Center in Porto, Portugal, Friday, May 7, 2021. European Union leaders met for a summit in Portugal on Friday, sending a signal they see the threat from COVID-19 on their continent as waning amid a quickening vaccine rollout. (AP Photo/Francisco Seco, Pool)

Spain's Prime Minister Pedro Sanchez arrives for an EU summit at the Alfandega do Porto Congress Center in Porto, Portugal, Friday, May 7, 2021. European Union leaders are meeting for a summit in Portugal on Friday, sending a signal they see the threat from COVID-19 on their continent as waning amid a quickening vaccine rollout. Their talks hope to repair some of the damage the coronavirus has caused in the bloc, in such areas as welfare and employment. (AP Photo/Francisco Seco, Pool)

European Commission President Ursula von der Leyen wears a protective face mask with the EU stars as she waits for the start of the opening ceremony at an EU summit at the Alfandega do Porto Congress Center in Porto, Portugal, Friday, May 7, 2021. European Union leaders meet for a summit in Portugal on Friday, sending a signal they see the threat from COVID-19 on their continent as waning amid a quickening vaccine rollout. Their talks hope to repair some of the damage the coronavirus has caused in the bloc, in such areas as welfare and employment. (Tiago Petinga, Pool via AP)

European Commission President Ursula von der Leyen speaks during the opening ceremony of an EU summit at the Alfandega do Porto Congress Center in Porto, Portugal, Friday, May 7, 2021. European Union leaders are meeting for a summit in Portugal on Friday, sending a signal they see the threat from COVID-19 on their continent as waning amid a quickening vaccine rollout. Their talks hope to repair some of the damage the coronavirus has caused in the bloc, in such areas as welfare and employment. (AP Photo/Luis Vieira, Pool)

French President Emmanuel Macron arrives for an EU summit at the Alfandega do Porto Congress Center in Porto, Portugal, Friday, May 7, 2021. European Union leaders are meeting for a summit in Portugal on Friday, sending a signal they see the threat from COVID-19 on their continent as waning amid a quickening vaccine rollout. Their talks hope to repair some of the damage the coronavirus has caused in the bloc, in such areas as welfare and employment. (Miguel Riopa, Pool via AP)

European Commission President Ursula von der Leyen speaks during the closing ceremony of the EU summit at the Alfandega do Porto Congress Center in Porto, Portugal, Friday, May 7, 2021. European Union leaders met for a summit in Portugal on Friday, sending a signal they see the threat from COVID-19 on their continent as waning amid a quickening vaccine rollout. (AP Photo/Francisco Seco, Pool)

French President Emmanuel Macron, left, fist bumps Poland's Prime Minister Mateusz Morawiecki during the opening ceremony of an EU summit at the Alfandega do Porto Congress Center in Porto, Portugal, Friday, May 7, 2021. European Union leaders are meeting for a summit in Portugal on Friday, sending a signal they see the threat from COVID-19 on their continent as waning amid a quickening vaccine rollout. Their talks hope to repair some of the damage the coronavirus has caused in the bloc, in such areas as welfare and employment. (AP Photo/Luis Vieira, Pool)

French President Emmanuel Macron, left, speaks with Spain's Prime Minister Pedro Sanchez during the opening ceremony of an EU summit at the Alfandega do Porto Congress Center in Porto, Portugal, Friday, May 7, 2021. European Union leaders are meeting for a summit in Portugal on Friday, sending a signal they see the threat from COVID-19 on their continent as waning amid a quickening vaccine rollout. Their talks hope to repair some of the damage the coronavirus has caused in the bloc, in such areas as welfare and employment. (AP Photo/Luis Vieira, Pool)

Spain's Prime Minister Pedro Sanchez arrives for an EU summit at the Alfandega do Porto Congress Center in Porto, Portugal, Friday, May 7, 2021. European Union leaders met for a summit in Portugal on Friday, sending a signal they see the threat from COVID-19 on their continent as waning amid a quickening vaccine rollout. Their talks hope to repair some of the damage the coronavirus has caused in the bloc, in such areas as welfare and employment. (Jose Coelho, Pool via AP)

Spain's Prime Minister Pedro Sanchez arrives for an EU summit at the Alfandega do Porto Congress Center in Porto, Portugal, Friday, May 7, 2021. European Union leaders are meeting for a summit in Portugal on Friday, sending a signal they see the threat from COVID-19 on their continent as waning amid a quickening vaccine rollout. Their talks hope to repair some of the damage the coronavirus has caused in the bloc, in such areas as welfare and employment. (AP Photo/Francisco Seco, Pool)

European Commission President Ursula von der Leyen arrives for an EU summit at the Alfandega do Porto Congress Center in Porto, Portugal, Friday, May 7, 2021. European Union leaders met for a summit in Portugal on Friday, sending a signal they see the threat from COVID-19 on their continent as waning amid a quickening vaccine rollout. Their talks hope to repair some of the damage the coronavirus has caused in the bloc, in such areas as welfare and employment. (Jose Coelho, Pool via AP)