Independent presidential candidate Robert F. Kennedy Jr. talks during a campaign event, in West Hollywood, Calif., Thursday, June 27, 2024. (AP Photo/Damian Dovarganes)

Independent presidential candidate Robert F. Kennedy Jr. talks during a campaign event, in West Hollywood, Calif., Thursday, June 27, 2024. (AP Photo/Damian Dovarganes)

Independent presidential candidate Robert F. Kennedy Jr. talks during a campaign event, in West Hollywood, Calif., Thursday, June 27, 2024. (AP Photo/Damian Dovarganes)

Republican presidential candidate former President Donald Trump, gestures during a presidential debate with President Joe Biden, Thursday, June 27, 2024, in Atlanta. (AP Photo/Gerald Herbert)

President Joe Biden speaks during a presidential debate with Republican presidential candidate former President Donald Trump, Thursday, June 27, 2024, in Atlanta. (AP Photo/Gerald Herbert)

European Council President Charles Michel addresses a media conference during an EU summit in Brussels, early Friday, June 28, 2024. European Union leaders signed off a trio of top appointments for their shared political institutions on Thursday evening, reinstalling German conservative Ursula von der Leyen as president of the European Commission for another five years. At the side of von der Leyen should be two new faces: Antonio Costa of Portugal as European Council President and Estonia's Kaja Kallas as the top diplomat of the world's largest trading bloc. (AP Photo/Geert Vanden Wijngaert)

President Joe Biden, right, listens as Republican presidential candidate former President Donald Trump speaks during a presidential debate hosted by CNN, Thursday, June 27, 2024, in Atlanta. (AP Photo/Gerald Herbert)

From left, European Council President Charles Michel, Belgium's Prime Minister Alexander De Croo and European Commission President Ursula von der Leyen pose for photographers at the end of an EU summit in Brussels, early Friday, June 28, 2024. European Union leaders signed off a trio of top appointments for their shared political institutions on Thursday evening, reinstalling German conservative Ursula von der Leyen as president of the European Commission for another five years. At the side of von der Leyen should be two new faces: Antonio Costa of Portugal as European Council President and Estonia's Kaja Kallas as the top diplomat of the world's largest trading bloc. (AP Photo/Geert Vanden Wijngaert)