Democratic U.S. Rep. Seth Moulton is officially running for president.

In a video posted to his website, the former Marine Corps officer and current representative from Massachusetts announced his campaign for the presidency in 2020.

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"Decades of division and corruption have broken our democracy and robbed Americans of their voice," he said in his announcement video.

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He joins a crowded field of Democrats running to oppose President Donald Trump in 2020, which includes U.S. Sen. Elizabeth Warren, also from Massachusetts.

Former Massachusetts Gov. Bill Weld has also announced a run on the GOP side to challenge Trump.