A poor debate performance has fuelled Democrat unease about Mr Biden's candidacy.
The first presidential debate is done and the aftermath has not been good for the incumbent, Joe Biden.
Some Democrat politicians and operatives reportedly texted CNN commentators with hopes that Mr Biden, 81, would step aside.
Some floated the possibility of going to the White House and publicly stating concerns about him remaining as candidate.
But if Mr Biden were to drop out, it would be a free-for-all. There is no official mechanism for him or anyone else in the party to choose his successor, meaning Democrats would be left with an open (Democratic National Convention (DNC) in Chicago from August 19-22.
She was my favorite in 2020 and I'd personally love Warren to be picked. She's got the stature, ability to draw volunteers and donations, and could put together the campaign infrastructure quickly. I just think Biden stepping aside puts a bad highlight on age that despite her being obviously more vital makes her a poor choice. Plus there's no possible way the moderate establishment that runs Biden's Democratic party would ever voluntarily choose her.
I'm at the point where anyone who's younger and not a RINO is a valid choice. I found Buttigieg and Harris to both be uninspiring political chameleons without any core beliefs in 2020, but if that's what it takes, so be it. My dream, but only minutely realistic pick for an under 70 replacement? Katie Porter.