Rep. Tulsi Gabbard, the sole woman remaining in the Democratic Primary race, has suspended her campaign and endorsed Joe Biden.

The endorsement is a coup for Biden, since Gabbard's decision to endorse Sanders during the 2016 primary helped boost her national profile and set her on the path to her own run.

Gabbard published the announcement on Twitter, where she released a video explaining her decision to her supporters, many of whom will likely be puzzled by her decision to endorse Biden.

Important announcement.
From Oahu, Hawaiʻi. #StandWithTulsi pic.twitter.com/XcHshtgVYA

— Tulsi Gabbard