Some deep-pocketed donors are still planning to show up at a Hamptons fundraiser for Joe Biden this weekend, but they hope the 2024 presidential candidate will be able to deliver more than he did during Thursday’s debate performance.

“We have no choice but to believe Biden will redeem himself. The alternative is so unthinkable,” a source attending the Saturday event said. “I’m going and everyone I know is still going.”

The source, who asked to remain anonymous, said he would remain loyal to Biden: “I go home with the girl I brought to the dance.” While he acknowledged voters “might not be excited [about Biden] … at the end of the day, this is where we are.”

Another longtime donor who is bypassing the afternoon event told The Post, “Everyone going [to the fundraiser] is extremely disappointed. Everyone paid in advance… so it could be an opportunity to encourage him to drop out.”

While several sources also told The Post they are “sticking with Biden,” the longtime donor noted that Jill Biden may receive a frosty reception at the event. “Lots of people are blaming his wife … for not telling him [to step aside].”

Many have claimed that “Jill Biden likes being First Lady… she doesn’t want to give that up.”

Biden will spend the weekend with hedge fund manager Barry Rosenstein and his wife Lizanne at their 18-acre oceanfront property in East Hampton.

There are a variety of tiers for tickets, starting at $3,300. A $30,000 “champion” ticket gets you a photo with the president and “preferred seating” at the event and a $100,000 “co-host” ticket gets you a photo for two and preferred seating.

It’s not known how many tickets have been sold, but one attendee said he hadn’t solidified his place until earlier this week and that they were still available.

The president responded similarly to reports of Democratic chaos after Biden’s debate, reiterating he plans “to go on the remaining races.” He has promised he will be back for the second debate in September, according to a report from CNN.