Hillary Clinton received a late major endorsement Friday from a union that GOP nominee Donald Trump tried to woo.

In a statement on its website, the head of the 1.4 million member International Brotherhood of Teamsters said the group's executive board unanimously voted to endorse Hillary Clinton for president of the United States.

"[Clinton] is the right candidate for the middle class and working men and women across the country," said Teamsters General President James Hoffa Jr. "She will stand strong for the workers of America by fighting to reject job-killing trade deals, enforcing labor laws and working to provide retirement security for millions of people who have sacrificed so much for the chance to retire with dignity."

In its endorsement, the group also panned Trump for supporting right-to-work laws, which prohibit closed union shops.

"The Oval Office needs to be occupied by a serious candidate who understands what it means to govern responsibly," Hoffa said. "Donald Trump supports national right-to-work laws that are proven to weaken the middle class and has a long track record of shipping jobs out of the country as a businessman. He is no friend to working Americans."

The Teamsters were considerably late in revealing their support of Clinton, who has wracked up the majority of union endorsements over the course of the election, including the AFL-CIO and Service Employees International Union.

As recently as last year, there were reports that the union had tried to reach out to Trump for a meeting.

Trump gave a shout out to the Teamsters in May, saying he was "honored" to have a pack of Teamsters create a group called "Teamsters for Trump." He also took a shot at Clinton for having "no clue" on jobs and infrastructure in a tweet where he tagged the Teamsters.

While most unions typically back Democrats, the trucker's union famously backed Ronald Reagan in 1984. Trump does have the endorsement of at least one union: the National Border Patrol Council.