Christopher Dodd

1 of 2 | Former Rep. Barney Frank speaks in 2022 during a signing ceremony for the Respect for Marriage Act, which requires the U.S. federal government to recognizing the validity of same-sex and interracial marriages in the United States, in the Rayburn Room of the U.S. Capitol in Washington, D.C. Frank died Tuesday at age 86. File Photo by Bonnie Cash/UPI | License Photo

May 20 (UPI) — Barney Frank, a former Massachusetts congressman who was instrumental in overhauling the country’s financial regulations and was one of the first openly gay members of Congress, died at his home in Maine. He was 86.

Frank had entered hospice care last month with congestive heart failure, The New York Times reported.

Rep. Nancy Pelosi, D-Calif., worked with Frank in Congress for decades. Pelosi called him “a real mentor” and said she learned a lot from him.

“He has been about idealism and pragmatism to get the job done,” she told NBC News.

Frank served in the House of Representatives for more than 30 years and led the House Financial Services Committee from 2007 to 2011. One of the successes for which he was best known was the Dodd-Frank Act of 2010, which he co-sponsored with Sen. Chris Dodd. The act, a response to the 2008 financial crisis, tightened regulations on Wall Street, preventing banks from taking part in the riskiest behaviors and protecting consumers.

Frank was one of the first U.S. politicians to come out as gay voluntarily — in a 1987 interview with the Boston Globe, a statement he followed with “So what?” He became the first member of Congress to marry a same-sex partner when he wed Jim Ready in 2012. Ready survives him.

“I think the key to our having made the enormous progress we made in defeating anti-gay prejudice had to do with all of us coming out and people discovering the gap between between our reality and the way we were painted,” Frank said in an interview last month with NBC News.

Frank was also known for championing civil rights and women’s rights and advocating for issues including environmental protection and abortion rights.

“I’m a left-handed gay Jew,” he often said, The New York Times reported. “I’ve never felt, automatically, a member of any majority.”

Frank’s first book, Frank: A Life in Politics from the Great Society to Same-Sex Marriage, was published in 2015. His second, The Hard Path to Unity: Why We Must Reform the Left to Rescue Democracy, is expected to be published in September.

In Frank, he wrote that he’d been good at his job but in retirement, he was ready to be “good at life.”