Sean O'Brien, the General President of the International Brotherhood of Teamsters, has announced his endorsement of Republican Senator Ashley Moody of Florida, a move that deviates from the union's typical alignment with the Democratic Party. O'Brien, who identifies as a "lifelong Democrat," cast his first-ever vote in Florida for Moody.

In a statement, O'Brien expressed pride in supporting Moody, citing her assistance in protecting workers' pensions, defending jobs, and supporting union apprenticeship programs. He indicated that the Teamsters look forward to collaborating with Moody on the Senate HELP Committee to advance the Faster Labor Contracts Act.

This endorsement comes after O'Brien previously spoke at the 2024 Republican National Convention. At that time, he stated that the Democratic Party had not invited him to speak at their convention, asserting that he represents "1.3 million hardworking men and women" regardless of political criticism.

Moody welcomed the endorsement, affirming her commitment to supporting American workers and advocating for job training. "I’ll always fight to protect hardworking Americans, strengthen good-paying jobs, and ensure resources are available to train our next generation. It’s been great to deliver for Florida’s working families," she said.

The endorsement drew a response from Moody's Democratic opponent, state lawmaker Angie Nixon, who shared a past photo with O'Brien and stated, "But ok brother. Shout out to all the rank and file Teamsters that are voting for me. I will always stand with you."

O'Brien's decision to vote in Florida and endorse a Republican candidate has drawn criticism from some who question his move from Massachusetts and his support for a candidate in a state perceived as anti-union. Some critics have used the term "scab" in reference to his actions.