President Biden announced Thursday that he will suspend his 2024 re-election campaign amid mounting pressure from his Democratic colleagues on Capitol Hill, top donors and Hollywood stars after a disastrous debate performance last month.

The unprecedented announcement came as an increasing number of Democrat lawmakers had begun to publicly call for Biden to step aside and the party's leadership reportedly was engaged in efforts to convince Biden, 81, he could not win in November's general election against former President Trump, the 2024 GOP nominee who Biden defeated four years ago to win the White House.

Biden was diagnosed with COVID-19 on Wednesday, a revelation that came on the heels of several TV interviews and campaign appearances in which the president insisted he was remaining in the race. But the interviews failed to reassure supporters and provided critics – including those on the left – with further evidence that Biden was no longer up to the job.