Biden entered the reelection cycle already racked by claims and concerns that his mental acuity had slipped and he was not ... including mocking Trump's challenge that he take a drug test in an X post ...

Sen. Dick Durbin unveiled a supercut of President Trump's "cognitive decline" as he took the floor during a Senate hearing probing Biden's mental acuity.

President Biden's failed debate against President Trump marked a turning point, fueling concerns about his mental acuity and leading to his withdrawal from the 2024 race.

The June 27, 2024, faceoff was the earliest-ever debate between presidential candidates. Yet, the stark contrast of a fumbling Biden, 81, against an alert Trump, 78, signaled the end for the ...

Democrats are still struggling to recover after Biden's disastrous debate against Trump led to the end of his presidential campaign.