538 is on top of that. In order to control for favoritism affecting the results, they compared polls before and after to determine who actually improved as a result of the debate and who didn't.
There's a whole bunch of information there and all sorts of interesting graphs, but the basic upshot is:
Harris kicked ass, basically doubling her voter base to put her in the clear Warren/Sanders/Biden category of major candidates.
Bernie held his ground fine and may have even picked up some voters (surprisingly, he picked up most of them after the first debate, not the second).
Warren got ranked high on her debate performance but only got a moderate uptick in votes (polled high after the 1st debate but lost some of those after the 2nd). However her favorability rating went up and unfavorability actually went down, meaning she might be in a better position to pick up more voters as other candidates drop out.
Castro rated high for his debate performance and improved his favorability a lot, picked up some new voters but still has a ton of work to do to pull out of the pack at the bottom.
Booker got a good rating for his debate performance and improved his favorability but didn't really pick up any new voters.
Biden lost a bunch of voters and saw his unfavorability ratings tick up.
Yang got a poor debate rating and didn't pick up anyone.
Klobucher, Ryan, Tulsi, Inslee, Delaney, Buttigieg, Gillibrand, Swalwell, Hickenlooper, and Bennet were all basically non-factors.
Williamson not only crashed, she's somehow now the only candidate with a negative favorability rating
Everyone hates DeBlasio.
Who Won The First Democratic Debate?
There's a whole bunch of information there and all sorts of interesting graphs, but the basic upshot is:
Harris kicked ass, basically doubling her voter base to put her in the clear Warren/Sanders/Biden category of major candidates.
Bernie held his ground fine and may have even picked up some voters (surprisingly, he picked up most of them after the first debate, not the second).
Warren got ranked high on her debate performance but only got a moderate uptick in votes (polled high after the 1st debate but lost some of those after the 2nd). However her favorability rating went up and unfavorability actually went down, meaning she might be in a better position to pick up more voters as other candidates drop out.
Castro rated high for his debate performance and improved his favorability a lot, picked up some new voters but still has a ton of work to do to pull out of the pack at the bottom.
Booker got a good rating for his debate performance and improved his favorability but didn't really pick up any new voters.
Biden lost a bunch of voters and saw his unfavorability ratings tick up.
Yang got a poor debate rating and didn't pick up anyone.
Klobucher, Ryan, Tulsi, Inslee, Delaney, Buttigieg, Gillibrand, Swalwell, Hickenlooper, and Bennet were all basically non-factors.
Williamson not only crashed, she's somehow now the only candidate with a negative favorability rating
Everyone hates DeBlasio.
Who Won The First Democratic Debate?
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