The official declaration finally ended any lingering suspense over Mr. Biden’s intentions and effectively cleared the way to another nomination for the president, barring unforeseen developments.
While he had repeatedly and consistently said he intended to run, Mr. Biden stoked renewed speculation by delaying his kickoff for months.
Now his team can assemble the formal structure of a campaign organization and raise money to finance it.
Mr. Biden tapped Julie Chávez Rodríguez, a senior White House adviser and granddaughter of the iconic labor leader Cesar Chávez, as his campaign manager.
Quentin Fulks, a Democratic operative who most recently ran Senator Raphael Warnock’s 2022 re-election campaign in Georgia, will serve as her principal deputy.
In offering himself as a candidate again, Mr. Biden is asking Americans to trust him with the powers of the commander in chief well into his ninth decade.
Mr. Trump, no youngster at 76, would himself outlast every president by age other than Mr. Biden if he were restored to the Oval Office and finished his new term at 82. »