This compares to a June 11, 2019 Quinnipiac University Poll which had Biden at 30 percent, Sanders getting 19 percent, Warren with 15 percent, Buttigieg at 8 percent, and Harris with 7 percent.

In today’s poll, Biden has a numerical lead among men with 22 percent, followed by Sanders at 19 percent and Harris with 14 percent. But among women, Harris has a slight edge with 24 percent to Biden’s 22 percent. The race is similarly close for white Democratic voters, with Biden at 21 percent, and both Harris and Warren at 20 percent. Harris also essentially catches Biden among black Democratic voters, a historically strong voting bloc for Biden, with Biden at 31 percent and Harris at 27 percent.

“Round 1 of the Democratic debates puts Senator Kamala Harris and former Vice President Joe Biden on two different trajectories, as support for Harris surges but continues to slip for Biden. Biden’s once commanding lead has evaporated. There are other red flags for him in areas where he still leads, including double digit drops among Democrats and Democratic leaners who view him as the best leader, or as the best candidate to defeat President Trump in 2020,” said Quinnipiac University Polling Analyst Mary Snow.