Biden implies he was pushed out

President Joe Biden says some questionable things that imply he was pushed out of the 2024 election. Biden said during this interview, “But what happened was a number of my Democratic colleagues in the house and Senate thought that I was gonna hurt them in the races.” Did the Democratic Party push Joe Biden out or nicely suggest he step down? Was this set in motion once Joe Biden performed poorly at the debate with Donald Trump? Or was this just all a coincidence? At the end of the day, what's the difference?