President Biden, 81, abandoned his bid for re-election on Sunday as he caved to relentless pressure from his closest allies to drop out of the race amid deep concerns that he was too old and frail to defeat former President Donald J. Trump. Vice President Kamala Harris said she would seek the nomination in his place, and many Democrats quickly lined up behind her after Mr. Biden gave her his endorsement.
"While it has been my intention to seek re-election, I believe it is in the best interest of my party and the country for me to stand down and focus entirely on fulfilling my duties as president for the remainder of my term," Mr. Biden said in a statement. He called it "the greatest honor of my life to serve as your president."
