"The debate obviously changed many things. The dial-testing during the debate demonstrated the weakness of the President’s performance, and a post-debate survey was scrapped." -- DNC Autopsy

WHAT? They canceled polling after Biden's disastrous debate performance? WHY???

— Chris Cillizza (@ChrisCillizza) May 21, 2026

"The White House did not position or prepare the Vice President. Had the White House explored and evaluated ways to leverage Kamala Harris earlier in the administration, perhaps it would have improved the President’s standing, and it certainly could have helped prepare her to…

— Chris Cillizza (@ChrisCillizza) May 21, 2026

A brutal chart from the DNC autopsy pic.twitter.com/fwfwREmxdH

— Chris Cillizza (@ChrisCillizza) May 21, 2026