A key progressive group is making its first round of new congressional endorsements as it looks to boost its allies ahead of potential 2018 clashes with top Republican lawmakers.

The Progressive Change Campaign Committee (PCCC) announced Tuesday morning that it would back Democrats Randy Bryce, the Wisconsin ironworker running to take on House Speaker Paul Ryan Paul Davis RyanKenosha will be a good bellwether in 2020 At indoor rally, Pence says election runs through Wisconsin Juan Williams: Breaking down the debates MORE (R); Andy Kim, who hopes to challenge Rep. Tom MacArthur (R-N.J.); and Katie Porter, who is running for the right to challenge Rep. Mimi Walters (R-Calif.).

"We’re endorsing Randy Bryce, Andy Kim, and Katie Porter because they are authentic, gut-level economic populists who are instinctively on the side of working people and will inspire voters," Stephanie Taylor, one of the PCCC co-founders, said in her statement announcing the endorsements.

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"As Republicans embrace [President] Trump as the face of their party, we need inspiring progressives like Randy, Katie, and Andy to be the face of the Democratic Party in order to take back the House in 2018."

Adam Green, the group's other co-founder, added that the three candidates are proof that Democrats don't need to compromise their progressive ideas in order to win in tough districts.

Bryce made a big splash earlier this year when his announcement video, which touted his working-class roots and his family's reliance on health insurance to treat his mother's multiple sclerosis, went viral.

The ironworker translated that buzz into a flurry of media attention and a big fundraising haul — he brought in more in direct fundraising in the third quarter than any other House candidate challenging an incumbent. He's currently pitted in a primary against Cathy Myers, a local school board representative, but is considered the heavy favorite.

But a bid against the deep-pocketed Ryan will be a heavy climb for either candidate, as House speakers rarely lose reelection. Ryan won his district by almost 35 points in November, while Trump won the district by about 10 points.

Kim, a former Obama administration counterterrorism adviser and Rhodes Scholar, is the heavy favorite in his primary and is expected to advance forward to take on MacArthur. Democrats believe the Republican is far more vulnerable now thanks to his key role in negotiating the House's unpopular, now-defunct plan to repeal and replace ObamaCare. But MacArthur won reelection by 20 points in 2016, outrunning President Trump by 14 percentage points in his district.

Porter is a former law student of progressive heavyweight Sen. Elizabeth Warren Elizabeth WarrenJudd Gregg: The Kamala threat — the Californiaization of America GOP set to release controversial Biden report Biden's fiscal program: What is the likely market impact? MORE (D-Mass.) and holds endorsements from both EMILY's List and Sen. Kamala Harris Kamala HarrisJoe Biden looks to expand election battleground into Trump country Fox's Napolitano: Supreme Court confirmation hearings will be 'World War III of political battles' Rush Limbaugh encourages Senate to skip hearings for Trump's SCOTUS nominee MORE (D-Calif.). She co-authored a book with Warren and worked on a number of progressive financial reforms in her home state.

But the consumer advocate and lawyer has the toughest primary challenge of the three PCCC-endorsed candidates.

While Porter has raised slightly more money than any other challenger, five candidates have raised over $200,000 so far this year. Having so many well-funded Democratic candidates in one primary could complicate the path.

But Democrats believe she, or another strong candidate, will have a strong change to cut down Walters in the general election after Trump lost the California district by 5 percentage points.

Days before their endorsements, the three candidates took part in a conference call with PCCC members, where they took questions from staff.

The endorsement means that the group will help bundle money for the candidates from their members, which could give them a financial boost.