openpolitics.com

WASHINGTON — The House Democratic campaign arm is nearing open warfare with the party’s rising liberal wing as political operatives close to Speaker Nancy Pelosi try to shut down primary challenges before what is likely to be a hard-fought campaign next year to preserve the party’s shaky majority.

Progressive Democrats were infuriated last month when Representative Cheri Bustos of Illinois, the chairwoman of the campaign arm, the Democratic Congressional Campaign Committee, moved to protect centrist incumbents by formally breaking committee business ties with political consultants and pollsters who go to work for primary challengers.

Representative Alexandria Ocasio-Cortez, Democrat of New York, who owes her seat to a successful primary challenge, went so far as to encourage her 3.8 million Twitter followers to “pause” their donations to the campaign committee in protest. She also started a fund-raising push on her official Twitter account for Representatives Jahana Hayes of Connecticut, Katie Hill of California and Mike Levin of California. That initiative, Ms. Ocasio-Cortez said on Twitter, raised $30,000 in roughly two hours. She also helped raise money for Representatives Katie Porter of California and Lauren Underwood of Illinois.

The open hostilities are just the latest in the rising tensions between an experienced party establishment focusing on what is possible in the short run and a group of young liberals chafing at such restraint. House Democrats have divided over single-payer “Medicare for all” versus incremental legislation to bolster the Affordable Care Act and over Ms. Ocasio-Cortez’s Green New Deal versus less ambitious climate change policies. Liberal Democrats and more moderate newcomers from Republican-leaning districts have fought over Republican procedural motions.

And divisions on health care, climate change, military spending and tax policy convinced the House Budget Committee chairman, John Yarmuth of Kentucky, last week to give up on drafting a budget that would have laid down a broad legislative agenda for the new Democrat-controlled House.

Now that tension has migrated to the mechanics of the 2020 campaign.

Ms. Bustos’s rule prohibits Democratic consultants and vendors working for a primary challenger to an incumbent from receiving work from the committee. It comes as ardent liberal organizations like Justice Democrats, emboldened by a pair of high-profile wins in 2018 — Representative Ayanna Pressley of Massachusetts and Ms. Ocasio-Cortez — are aggressively gearing up to challenge centrist or old-line Democrats with liberal candidates.

In the latest swipe in a fight that has erupted into open hostilities, a coalition of progressive groups on Friday introduced an online database of go-to vendors for insurgent candidates emblazoned with the heading, “Despite the D.C.C.C.’s bullying, we’re still going to work on primaries.”

One group, the Progressive Change Campaign Committee, said Friday that it was exploring a challenge against Representative Richard E. Neal of Massachusetts, the chairman of the powerful Ways and Means Committee, because he has not committed to holding hearings on the single-payer health care system known as “Medicare for all.” At the helm of that panel, Mr. Neal has been on the front lines of conducting oversight on President Trump’s finances, and last week requested six years of his personal tax returns.

“We reject the D.C.C.C.’s attempt to hoard power, which will only serve to keep that talent pool — and Congress itself — disproportionately white and male,” María Urbina, the national political director for Indivisible, a progressive grass-roots group, said of the campaign committee. “Incumbents who engage fully with their constituents shouldn’t fear primaries and shouldn’t rely on the national institutions like the D.C.C.C. to suppress challenges before voters ever have a say.”