Joe Biden was joined by his predecessors Barack Obama and Bill Clinton today for a taping of the Smartless podcast, a prelude a large-scale showbiz filled fundraiser this evening at Radio City Music Hall.

The fundraising event raised more than $25 million, making it the largest haul for a single political event, according to Biden’s re-election campaign. The campaign was quick to compare the money raised to that of Donald Trump, who has lagged his rival in fundraising. The sum is larger than the entire amount that Trump’s campaign raised in February.

The appearance of Biden, Obama and Clinton also was designed as a show of unity to Trump, who has been shunned by high profile traditional Republicans like former Vice President Dick Cheney and his daughter, Liz Cheney. The only living Republican ex-president, George W. Bush, has not said whether he will endorse Trump, but he did not campaign with the former Celebrity Apprentice host in 2016 or 2020.

Outside of Radio City, though, was a reminder for Biden of the fissures in the party over the Israel-Gaza war, as dozens of demonstrators lined up in front of the theater. The appearance of protesters at any Biden event has become a common scene, with hecklers interrupting his speech in Raleigh earlier this week.

At the event, Stephen Colbert will moderate a discussion with the three presidents. First Lady Jill Biden also will deliver remarks, and there will be performances by Lizzo, Cynthia Erivo, Ben Platt, Queen Latifah and Lea Michelle. Mindy Kaling will emcee.