Seth Moulton, a three-term congressman from Massachusetts, ended his presidential campaign on Friday, August 23, and said that he would seek re-election to Congress.

Moulton is a Marine Corps veteran who served four tours in Iraq. He announced his presidential aspirations in April.

"I am running because I am a patriot, because I believe in this country and because I have never wanted to sit on the sidelines when it comes to serving it," Moulton said on ABC's "Good Morning America."

Moulton has seen a raised national profile in recent years as he tried — and failed — to oust Nancy Pelosi from House Democratic leadership. He later voted for Pelosi's speakership after Democrats retook the House in 2018.

Moulton was born in Salem, Massachusetts, on October 24, 1978. <a href="index.php?page=&url=https%3A%2F%2Fwww.facebook.com%2FSethMoulton%2Fphotos%2Fa.270602479745362%2F426051077533834%2F%3Ftype%3D3%26theater" target="_blank" target="_blank">He posted this baby photo to Facebook,</a> calling it his "big head" phase. "Is this what a new generation of leadership looks like?" he joked.
Moulton was born in Salem, Massachusetts, on October 24, 1978. He posted this baby photo to Facebook, calling it his "big head" phase. "Is this what a new generation of leadership looks like?" he joked.
Seth Moulton for America
Moulton, right, served four tours in Iraq while with the US Marine Corps, and he received a Bronze Star with valor for heroic actions in combat. "The greatest honor of my life was to lead these men in my platoon, even though it was a war that I and they disagreed with," he told The Boston Globe in 2014.
Moulton, right, served four tours in Iraq while with the US Marine Corps, and he received a Bronze Star with valor for heroic actions in combat. "The greatest honor of my life was to lead these men in my platoon, even though it was a war that I and they disagreed with," he told The Boston Globe in 2014.
Seth Moulton for America
Moulton speaks at a Democratic caucus in Salem, Massachusetts, in March 2014. After leaving the Marine Corps, Moulton earned master's degrees in business and public policy from Harvard Business School and the Harvard Kennedy School, Harvard is also where he earned his undergraduate degree before he entered the military.
Moulton speaks at a Democratic caucus in Salem, Massachusetts, in March 2014. After leaving the Marine Corps, Moulton earned master's degrees in business and public policy from Harvard Business School and the Harvard Kennedy School, Harvard is also where he earned his undergraduate degree before he entered the military.
John Blanding/The Boston Globe/AP
Vice President Joe Biden salutes a member of the audience as he campaigns with Moulton in October 2014.
Vice President Joe Biden salutes a member of the audience as he campaigns with Moulton in October 2014.
Jessica Rinaldi/Boston Globe/Getty Images
Moulton celebrates his election victory in November 2014. He was unopposed in 2016 and re-elected in 2018.
Moulton celebrates his election victory in November 2014. He was unopposed in 2016 and re-elected in 2018.
John Blanding/Boston Globe/Getty Images
Moulton is joined by his future wife, Liz, at an event in Boston in May 2017. The two were married later that year.
Moulton is joined by his future wife, Liz, at an event in Boston in May 2017. The two were married later that year.
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Moulton speaks during a Bipartisan Working Group meeting in July 2017.
Moulton speaks during a Bipartisan Working Group meeting in July 2017.
Bill Clark/CQ-Roll Call Group/Getty Images
Moulton and his wife, Liz, in a photo <a href="index.php?page=&url=https%3A%2F%2Fwww.facebook.com%2FSethMoulton%2Fphotos%2Fa.270602479745362%2F1033836170088652%2F%3Ftype%3D3%26theater" target="_blank" target="_blank">he posted to Facebook</a> in January 2018.
Moulton and his wife, Liz, in a photo he posted to Facebook in January 2018.
Seth Moulton for America
Moulton shakes hands with House Speaker Nancy Pelosi during his ceremonial swearing-in this year. Moulton in the past has tried to oust Pelosi from House Democratic leadership. But this time, he voted for her speakership.
Moulton shakes hands with House Speaker Nancy Pelosi during his ceremonial swearing-in this year. Moulton in the past has tried to oust Pelosi from House Democratic leadership. But this time, he voted for her speakership.
Susan Walsh/AP
Moulton poses with US Rep. John Lewis, a civil rights icon, in Selma, Alabama, in March 2019. "After 54 years, John Lewis is still walking across Edmund Pettus Bridge in the name of freedom and equality," <a href="index.php?page=&url=https%3A%2F%2Fwww.facebook.com%2FSethMoulton%2Fphotos%2Fa.367186863420256%2F1320631628075770%2F%3Ftype%3D3%26theater" target="_blank" target="_blank">Moulton said on Facebook.</a> "Today I was proud to walk with him."
Moulton poses with US Rep. John Lewis, a civil rights icon, in Selma, Alabama, in March 2019. "After 54 years, John Lewis is still walking across Edmund Pettus Bridge in the name of freedom and equality," Moulton said on Facebook. "Today I was proud to walk with him."
Seth Moulton for America
Moulton speaks with a veteran during a campaign stop in Manchester, New Hampshire, in April 2019.
Moulton speaks with a veteran during a campaign stop in Manchester, New Hampshire, in April 2019.
Adam Glanzman/Bloomberg/Getty Images
Moulton holds his daughter, Emmy, before a town-hall event in Newburyport, Massachusetts, in May 2019. Emmy is his only child.
Moulton holds his daughter, Emmy, before a town-hall event in Newburyport, Massachusetts, in May 2019. Emmy is his only child.
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Moulton speaks in Atlanta during his CNN town hall in June 2019.
Moulton speaks in Atlanta during his CNN town hall in June 2019.
Edward M. PioRoda/CNN