Hudson Institute Senior Fellow Michael Doran says as long as US President Joe Biden won’t step aside in the presidential race, the Democrats are “stuck with him”.

“It is a classic case of an immovable object meeting an irresistible force,” he told Sky News Australia.

“The process of moving him out is going to be so damaging to the party and so difficult and probably really impossible to do that I think they’re going to just try to rally around.”