CHICAGO — Democrats rocked out on Wednesday, basking in a newfound sense of political “magic,” exactly one month after President Biden dropped his re-election bid, and drawing hope from Vice President Kamala Harris’ “vibes” and “joy” — despite her lack of comprehensive policy action.

With Biden now out of the race, Democrats believe they have a serious chance of winning under Harris.

Although she has not yet given an interview about her policies or created a dedicated tab on her website, Democrats are eager to have someone else on the ballot besides Biden.

“The enthusiasm is boundless,” said former Kansas state Rep. Raj Goyle, a friend of Harris who has known her since 2008, about the state of the race a month after Biden’s withdrawal.

Describing his work in the early days of former President Barack Obama’s political rise, Goyle said it was “the same energy,” and perhaps even more so because so much is at stake to defeat Donald Trump.

Both Barack and Michelle Obama spoke at the convention on Tuesday, wowing the United Center — which was packed with Democrats — with their famously dynamic oratorical skills. The former president only mentioned Biden by name twice in his keynote speech — and Michelle Obama ignored him entirely.

“There’s something wonderfully magical in the air, isn’t there? Not just here in this arena, but it’s spreading across the country we love. A familiar feeling that’s been buried too deep for too long,” Michelle Obama announced.

“It’s the contagious power of hope!” she added.

That “hope” was palpable at a DNC event called “Boomers for Harris-Walz Rockin’ Doo-Wop Party,” where older Democrats literally danced on Biden’s political grave.

Those in attendance danced to tunes of their time and sang classical songs – with the lyrics embarrassingly altered to express their fanatical support for Harris.

“Joe supported Kamala one Sunday and our hearts stood still, da-doo, run, run, run, run, to-do, run, run,” they sang in the style of The Crystals’ 1963 hit “Da Do Ron Ron.”

“And then I wrote that Kamala called her partner Tim ‘da do do run, run, run doo wop.'”

And to the tune of the chorus “Wimoweh” from the 1961 song “The Tokens,” they sang, “Kamaaala, Kamaaala, let’s vote Trump out.”

But Republicans like Republican Rep. Byron Donalds of Florida stressed this week that all the “joy” and good cheer Harris is promoting during the election campaign would not be enough to “put food on the table” for the Democrats.

Most of the senior politicians The Post spoke to said they were ready to move on from Biden and embrace Harris’ “future,” knowing the 81-year-old president must step down.

The cheerful but subdued mood was similar to that of the rest of the downtown DNC venue, where The Post saw a scattered group of other people dancing at downtown Chicago’s “Dem-palooza” and taking photos of the fake Kamala coconut shack with a sign for “Mamalatinis.”

Biden suspended his campaign a month ago on July 21, facing increasing pressure over his ability to win votes following his debate performance against Trump.

The White House refused to acknowledge that there were any concerns about his age, but Biden joked on the first night of the DNC that he was “too old” to be president.

Biden’s legacy was the focus of the first night of the DNC, but by the second night he was barely mentioned.

The president flew to California for a vacation with First Lady Jill Biden after his speech on Monday evening, after which Trump claimed that Biden was “unhappily sunbathing on the beach” while his former supporters celebrated in the Windy City.

Trump, 78, chided Biden in a Truth Social post on Wednesday, saying he is “now unhappily sunbathing on a California beach, watching the waves and thinking about how much he hates Barack Hussein Obama, crazy Nancy Pelosi and lightweight movie star George Clooney for not coming to Crooked Joe’s aid.”

Trump claimed that Biden was “seething” about the Democratic speakers who had appeared as their favorites at the convention and accused Vice President Kamala Harris of undercutting her boss.

“I watched Joe Biden on Monday night and was amazed at his ANGER as he was humiliated by the Democrats. I was glad to have been part of his downfall,” he said, referring to his June 27 debate with Biden that led to his downfall.

Trump and his allies are keen to exploit the perception of hostility between Biden and the Democrats at the convention. Trump’s senior adviser Brian Hughes stressed to reporters on Wednesday that Biden was barely mentioned during the second evening of the convention’s program.

“(It is) further proof that Harris and the DNC are desperately trying to drive America insane, in a sense, and disconnect her from the terrible record she shares with Joe Biden,” he said at a counter press conference at the Trump Hotel Chicago.

Before Biden’s departure, many Democrats were despairing and worried about alarming poll numbers that gave Trump a clear lead ahead of the November 5 election.

Voters “were deeply concerned about whether President Biden would be able to do the job for the next four years,” Goyle admitted, alluding to dismay over the president’s age and mental acuity.

He claimed that fear of Biden was not an indictment of his performance and insisted that the president’s policies were popular.

Moe Vela, a former senior adviser to Biden, echoed this assessment.

“(Biden) has come to the same realization as many others, which is that our chances of winning with him as our candidate are diminishing,” Vela said, praising Biden for “putting our nation, our democracy and our people above his own interests.”