Vice President Kamala Harris has secured the support of enough Democratic delegates to become her party's nominee against Republican Donald Trump, according to an Associated Press survey, as top Democrats rallied to her in the aftermath of President Joe Biden's decision to drop his bid for reelection.

The quick coalescing behind Harris marked an attempt by the party to put weeks of internecine drama over Biden's political future behind them and to unify behind the task of defeating Trump with just over 100 days until Election Day. Prominent Democratic elected officials, party leaders and political organizations quickly lined up behind Harris in the day after Biden's exit from the race and her campaign set a new 24-hour record for presidential donations on Monday.