The previously unreported plans to single out additional members on the Ways and Means, Judiciary and Oversight Committees, detailed by Steyer and his advisers, represent the latest turn in Steyer’s multimillion-dollar campaign to impeach Trump. And the thinly veiled threat against the Democratic upper brass puts the former hedge fund manager turned activist squarely at odds with leaders of the party.

“There’s a gigantic cost to not listening to your constituents,” Steyer said in an interview with POLITICO. “There’s a gigantic cost to thumbing your nose at democracy.”

Kevin Mack, Steyer’s lead strategist on Need to Impeach, said the PAC has virtually unlimited resources to spend in targeted districts. The group has committed $40 million to the campaign for 2019 so far. The offensive includes TV and digital ad buys, paid staff in key districts and volunteers to organize canvassing.