Alan Patricof Olivia Michael | CNBC

Millionaire and longtime Democratic megadonor Alan Patricof is furious with Donald Trump. That’s why he’s doing everything within his legal means to overthrow Republican rule in the House of Representatives, he said. “I will do anything I possibly can to get a Democratic Congress, to offset the factors that the president has put in place,” Patricof said in an interview with CNBC. When asked what has upset him the most, Patricof responded bluntly with a question of his own: “Where should I start?” He went on to list just a few of his grievances, including Trump and the Republican-led Congress overturning parts of the Dodd-Frank Act, the president’s efforts to dismantle former President Barack Obama’s legacy and even the way in which the commander in chief publicly shames his enemies. Patricof, the founder and managing director of venture capitalist firm Greycroft LLC, explained that he’s taking on Trump and House Republicans during the midterm elections primarily by backing a new joint fundraising committee, the House Victory Project.

Growing operation

The group is led by several wealthy Democratic financiers, including Jane Hartley, Blaire Effron and Roger Altman, Patricof said. Representatives for Hartley, Effron and Altman did not return requests for comment. Patricof says their operation has grown from approximately 25 donors to over 100. Their goal is to help 24 candidates. Each donor is reportedly expected to give a minimum of $108,000 to participate.

He also noted the organization is getting requests from a variety of campaigns for its endorsement but emphasized the list of candidates will not be finalized until after the primary season. “We are getting calls from people running in every state and every area for their help. Everything will be decided after the primaries,” Patricof said. Eleven of the candidates the group is backing have been made public through Federal Election Commission filings. They are in districts considered toss-ups by Larry Sabato’s Crystal Ball.

Swing districts