(CNN) Rep. Ayanna Pressley endorsed fellow Massachusetts Democrat Sen. Elizabeth Warren for president on Wednesday, splitting from her progressive freshman allies. That group, known as the "Squad" and led by Rep. Alexandria Ocasio-Cortez, recently backed Warren's 2020 primary rival, Sen. Bernie Sanders.

In an email, Pressley announced the decision and plans to join Warren on the campaign trail in North Carolina on Thursday.

"Elizabeth has made it her life's work to pursue justice for working families and put economic and political power in the hands of people. We find ourselves in a fight for the soul of our nation, and I know Elizabeth can win it," Pressley said in her statement.

Warren welcomed the decision in a tweet : "Thank you, @AyannaPressley! I'm proud to be fighting alongside you to put power in the hands of the people."

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