July 8 (UPI) -- President Joe Biden said that he is not stepping down as the Democratic nominee in a letter to congressional Democrats on Monday.

"I want you to know that despite all the speculation and press elsewhere I am firmly committed to staying in this race, to running this race and to the end, and to beating Donald Trump," Biden wrote in the letter, obtained by The New York Times and other outlets.

Biden called for the Democratic Party to unite behind him as he campaigns for re-election, highlighting his performance in the nominating process.

A majority of primary voters cast ballots for the president in the spring, setting him up to be officially nominated at the Democratic National Convention beginning on Aug. 19.

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