Democrat David Segal has won a high-profile endorsement from U.S. Sen. Elizabeth Warren of Massachusetts as he looks to expand his support in Rhode Island’s Second Congressional District.

“I’ve worked with David Segal on plans to level the economic playing field, support a responsible foreign policy, and build a government that Americans can trust to work for them,” Warren said in a statement released Thursday.

She continued: “I’m proud to endorse David for Congress in Rhode Island’s 2nd District because he’ll continue to lead with understanding, principle, and conviction -- and he knows how to build the kinds of broad coalitions we need to make change happen.”

Segal, a former Providence city councilor and former state rep who co-founded the activist group Demand Progress, has a strong following among progressives. Having the backing of Warren and groups such as Our Revolution -- founded by supporters of Bernie Sanders -- could help amplify and extend that.

With fewer than five months until the September 13 primary, voters will choose among seven Democrats seeking the congressional seat being vacated in January by U.S. Rep. Jim Langevin.

Besides Segal, the other candidates are Omar Bah, founder of the Refugee Dream Center; Joy Fox, a former staffer for Langevin and Gina Raimondo; General Treasurer Seth Magaziner; Sarah Morgenthau, who worked most recently for the U.S. Commerce Department; Cameron Moquin, a lieutenant in the Providence Fire Department; and Michael Neary, a former John Kasich staffer whose campaign has been overshadowed by a recent arrest in Ohio.

Magaziner switched over from a race for governor in January, and he has emerged as the top fundraiser in the CD2 race, having raised $1.4 million in the first quarter of the year. Segal raised more than $250,000.

Magaziner has received more than a dozen endorsements from organized labor, including from the RI AFL-CIO, United Nursing and Allied Professionals and the Rhode Island Building Trades.

The inclusion of Magaziner and Segal in the field of candidates reflects competing strands within the Democratic Party.

Magaziner’s father, Ira, was a top adviser during Bill Clinton’s presidency and Clinton came to Rhode Island to campaign for Magaziner’s first run for treasurer in 2014. But the Clintons’ popularity has faded in Rhode Island since Hillary Clinton outmatched Barack Obama in the 2008 presidential primary here. In 2016, it was Sanders who easily outpaced Clinton in Rhode Island.

Segal formally announced his campaign Wednesday.

“People are frustrated,” he said in a statement, “and they should be frustrated -- because government should be able to do more to address the concerns of our neighbors. We need leaders who can restore the trust of the people, and bring people together to address our shared concerns. That’s what I’ve done in local and state government, and on national issues. I’m running for Congress to continue doing that work.”

Magaziner has framed the election as a matter of keeping the CD2 seat for Democrats. Former Cranston Mayor Allan Fung faces former state Rep. Bob Lancia in the GOP primary.

On the question of how he compares as a general election candidate against a Republican rival, Segal told The Public’s Radio: “I have deeply held progressive values, but when I've talked about building broad coalitions I don't just mean among people who identify as progressives. I have a 20-year track record of reaching out to traditional Democrats, independents, and even Republicans when we have a common goal.”

He added: “Whether issues like good governance or protecting local services while I served in the House, or on matters like guarding consumers and small businesses from abuses by corporate monopolies at the federal level, I look for reasons to work with people -- not to dismiss them. I think general election voters will respect both that way of working and the concrete outcomes it can yield.”

This story has been updated.

Ian Donnis can be reached at Follow him on Twitter @IanDon. Sign up here for his free weekly RI politics newsletter.