Biden announces re-election bid amid questions while DeSantis and Harris draw scrutiny

President Joe Biden launched his re-election campaign citing threats to democracy and freedom.
Florida Governor Ron DeSantis faces criticism from Donald Trump over a bill allowing him to run for president without resigning as governor.
Vice President Kamala Harris held a rally supporting abortion rights but her repetitive language was mocked by critics.
The Republican National Committee released an AI-generated ad attacking Biden's presidency and potential second term.
Early polls show Biden leading Trump in a hypothetical 2024 matchup but facing skepticism over his age and job performance.