An LA Times poll shows that Kamala Harris has surged in California:
Harris leads Trump 59% to 34% in the electoral-vote-rich Golden State, a margin 7 points larger than President Biden held earlier this year.... Fueling the surge by the vice president are much higher levels of support that Harris receives from younger voters, ages 18 to 29, whose backing of the Democrats grew by 23 percentage points; and Black voters, whose backing jumped by 16 percentage points.... 11 points among liberals and 10 points among Latinos,
This doesn't matter electorally since Harris was always going to win California anyway. But it's strong evidence that she's doing really well at increasing enthusiasm and support among traditional Democratic base groups who had been reluctant to support Biden. I mean, 23 points among young voters. That's unreal.
Harris has given millions of people instant permission to back the Democratic nominee, which they wanted to do all along. Only Biden's age was holding them back.