People lay flowers in the city center two days after a deadly shooting in Krakow, Poland, Monday, Nov. 9, 2026. (AP Photo/Beata Zawrzel)

People look to a bullet hole in the window of a restaurant at the main square two days after a shooting in Krakow, Poland, Monday, Nov. 9, 2026. (AP Photo/Beata Zawrzel)

People gather in the main square in Krakow, Poland, Monday, Nov. 9, 2026, to commemorate the victims of a shooting attack. (AP Photo/Beata Zawrzel)

People cheer as a statue of Pope Leo XIV is installed in 'El Niño' park in Callao, Peru, Friday, Nov. 6, 2026, ahead of his planned trip to Uruguay, Argentina, and Peru from November 6 to17. (AP Photo/Guadalupe Pardo)

FILE - This undated electron microscope image provided by the Centers for Disease Control and Prevention on Feb. 4, 2015, shows a measles virus particle, center. (Cynthia Goldsmith/CDC via AP, File)

President Donald Trump speaks to the media before walking across the South Lawn of the White House to board Marine One, Friday, Nov. 6, 2026, in Washington. (AP Photo/Mark Schiefelbein)

President Donald Trump responds to questions from members of the media while returning to the White House following a weekend trip to Florida, in Washington, Sunday, Nov. 8, 2026. (AP Photo/Nathan Howard)

Incoming White House chief of staff Stephen Miller arrives at the White House following a weekend trip to Florida with President Donald Trump in Washington, Sunday, Nov. 8, 2026. (AP Photo/Nathan Howard)