Former White House press secretary Jen Psaki contended that Democrats swapping out President Joe Biden with a different candidate would be a difficult process, noting how many voters are already attached to Biden.

Psaki’s assessment on replacing Biden comes after he debated former President Donald Trump on Thursday, during which the president gave a “very bad” performance. Psaki was especially critical of Biden’s performance during the first 30 minutes of the debate, as well as how he failed to make the case for what he would do in a second term, such as securing abortion access or improving the economy.