In his first public appearance since dropping out of the presidential race, President Biden said Monday his decision was the "right thing to do" and vowed to campaign for Vice President Kamala Harris.

White House officials and Democratic lawmakers on Monday rebuffed calls for President Biden to resign because of doubts about his ability to serve as commander-in-chief, after he bowed out of his reelection campaign.

House and Senate Democratic leaders are set to meet with Vice President Kamala Harris on Tuesday as she lobbies for their endorsements for the party's presidential nomination.

Sen. J.D. Vance struck out onto the campaign trail Monday, his first solo adventure as the Republican vice presidential nominee, and accused Vice President Kamala Harris and Democrats of lying to the American public about President Biden's cognitive decline.