 As for replacing the president at the top of the Democratic ticket, the process isn't impossible, but it would be messy and politically risky. Some names floated as possible replacements include Vice President Kamala Harris and California Governor Gavin Newsom. Newsom has said he has no interest in running and continues to support President Biden. Meanwhile, the Biden campaign says it has new polling data that shows that the president's shaky debate performance didn't change voters' minds about the race.