No plans to drop out of race against Trump: Biden tells Democrats

US President Joe Biden told congressional Democrats on Monday that he is "firmly committed" to running for re-election against his Republican rival Donald Trump and called for speculation over his candidacy to end despite mounting concerns about his mental fitness and the viability of his campaign.

In a strongly-worded letter to some donors and Democrats who are demanding that he quit the race for the White House on November 5, Biden, the presumptive candidate of the Democratic Party, sought to address their growing concerns.

"I have heard the concerns that people have their good faith fears and worries about what is at stake in this selection. I am not blind to them, 81-year-old Biden wrote in the letter to the Democratic lawmakers in the US Congress.

I can respond to all this by saying clearly and unequivocally: I wouldn't be running again if I did not absolutely believe I was the best person to beat Donald Trump in 2024, asserted the president, who after his June 27 disastrous .