Massachusetts U.S. Rep. Seth Moulton is ending his long-shot bid for the Democratic nomination for president.

"Though this campaign is not ending the way we hoped, I am leaving this race knowing that we raised issues that are vitally important to the American people and our future," the Marine veteran and 6th district congressman is set to say at a Democratic National Committee meeting Friday afternoon, according to prepared remarks sent from his campaign.

Moulton will reiterate he's running for re-election for his North Shore congressional seat, and that he "will be campaigning my a-- off for whoever wins our [presidential] nomination in 2020."

"Donald Trump is going to be harder to beat than most people think," he will say. "But we can, and we must, beat him—because our country, our values, and our future depend on it."

In a press release Friday, Moulton's campaign said that "[e]ntering the race late and with lower name ID than other candidates, he always faced long odds."

Moulton's campaign never gained traction. The third-term congressman joined an already-large field of Democrats in April, presenting himself as a candidate of generational change and emphasizing his service background.

He did not meet the threshold to qualify for two Democratic debates over the summer, and had not qualified for September's debate.

In the latest poll of likely Democratic primary voters in neighboring New Hampshire, from Suffolk University and the Boston Globe, Moulton received 0% support from respondents.

Speaking with WBUR last month, David Gergen, a Harvard University professor and former political consultant who is also one of Moulton's mentors, categorized Moulton's bid for the Democratic nomination as "the longest of long shots."

Moulton, who's originally from Marblehead, attended Harvard and served four tours of combat in Iraq.

Gergen told WBUR that Moulton set himself back among many Democrats by opposing Nancy Pelosi’s re-election as speaker of the U.S. House.

He now faces at least two primary challengers for his North Shore congressional seat.

In his speech today, Moulton will add he plans to relaunch his political action committee, Serve America, which he says "helped take back the House last cycle by electing 21 service-driven Democrats in tough districts across America."

This story comes from the New England News Collaborative, eight public media companies, including The Public's Radio, coming together to tell the story of a changing region, with support from the Corporation for Public Broadcasting.