WASHINGTON (NewsNation) — A series of organized Zoom calls are raising money and connecting supporters for Vice President Kamala Harris’ last-minute presidential campaign.

One call Monday night is built around “White Dudes for Harris” and had more than 120,000 RSVPs, according to meeting organizer Brad Bauman.

“It’s extraordinary and unprecedented. We’re floored by the support that’s out there,” Bauman said during a Monday appearance on NewsNation’s “CUOMO.” “We know Trump has traditionally done very well with white dudes like us. But white dudes like us, we’re getting fed up with his shtick.”

In barely a week since President Joe Biden bowed out of the race and endorsed Harris, tens of thousands of people have joined virtual gatherings spun up by activists and outside organizations to rally support for the vice president among specific groups including Black women, Hispanic women, Black men, Asian Americans, Native Americans and the LGBTQ+ community.

The calls reflect how Democrats, including Biden, have frequently relied on voters from broad and disparate backgrounds to piece together a diverse coalition of support. Biden’s 2020 victory, for example, relied on segments of the population ranging from organized labor to conservative, suburban women disillusioned with Republican Donald Trump.

The Zoom calls haven’t been organized by Harris’ team, but her campaign welcomes the assist — and the millions of dollars in fundraising.

“Winning campaigns are powered by real, organic support,” Harris campaign communications director Michael Tyler said in a statement.

Andrew Bauer, who is friendly with both Trump and Harris, said the Zooms are a “smart political move” but there are “a lot of obstacles” Harris will need to overcome.

“She’s had a honeymoon phase,” Bauer said. “But when it gets down to issues, the Republicans are right on so much more on what mainstream Americans are feeling the pain from.”

Associated Press contributed to this report.