It pops up as paywalled in Chrome, but not Firefox. Not on archive.org, so here’s a tl;dr:
"Two private polls conducted in a swing New York House district and reviewed by POLITICO — one in September and another in March — found former President Donald Trump leading Biden there by 1 point, a virtual tie. And public polls over the last four months found Biden’s lead had winnowed to just 8 points across New York — an unusually narrow gap in a state where Democrats outnumber Republicans 2 to 1.
“We’re still acting like this is a one-party state, which for pretty much 20, 25 years it has been,” Democratic Manhattan Borough President Mark Levine said. “I truly believe we’re a battleground state now.”
A Biden lead of 8 points in a state he carried by 23 in 2020 is a huge loss of support.
Current polling:
https://projects.fivethirtyeight.com/polls/president-general/2024/new-york/
Polling shows that people don’t hate Harris more though. In this context she’s more popular than both Biden and Trump.
https://www.usatoday.com/story/news/politics/elections/2024/03/14/kamala-harris-not-popular-beyond-democrats-poll/72944269007/
"The national survey found 52% of registered voters disapprove of her job performance as President Joe Biden’s vice president.
About 36% approve of how she’s handling the role, trailing Biden’s almost equally dismal 41% approval rating.
Roughly 38% of Americans have a favorable view of Harris, lagging behind Biden, who is viewed favorably by 41% of registered voters. Former President Donald Trump, the presumptive Republican nominee, was viewed favorably by 40% of respondents in the poll."
Perhaps look at more recent polling after Biden’sfailure in the debate, not numbers from May.
[Reuters]
She’s more popular with women and independents than Biden, which are two of the main groups Biden has been attempting to court to make up for losing the anti-genocide vote. There are no downsides, Biden’s a guarunteed loss, his numbers match up with every losing presidential candidate going back decades.
You have to look at aggregate polls, single polls don’t provide a clear picture.
Biden’s approval rating is -19.3 https://projects.fivethirtyeight.com/biden-approval-rating/
Trump’s favorability rating is -11.8 https://projects.fivethirtyeight.com/polls/favorability/donald-trump/
Harris’ approval rating is -12 https://projects.fivethirtyeight.com/polls/approval/kamala-harris/