Rep. Michele Bachmann (R-Minn.) will endorse Mitt Romney's presidential bid on Thursday, a campaign source told The Hill.
A one-time front-runner in the GOP presidential race, Bachmann didn't endorse any candidate after dropping out of the race in January following a 6th-place finish in Iowa's caucuses. Most expected if she did endorse while the primary was still in full swing, it would be for Rick Santorum, who snagged her spokeswoman and many of her supporters after she bowed out.
But while Bachmann has remained coy about her endorsement plans since leaving the race, she has also softened her rhetoric on Romney, and insisted that she would be a force for GOP unity behind the party's eventual nominee.
"We will see an open ear from Mitt Romney," Bachmann told CNN in late April. "So far, he has proved to be a person who listens. That's what we need — a nominee who listens."
One of Bachmann's other former opponents in the GOP primary — Newt Gingrich — was similarly noncommittal Wednesday as he announced he was suspending his presidential campaign. Gingrich said he preferred Romney to Obama, but stopped short of offering the presumptive GOP nominee his full endorsement.
Bachmann is up for reelection in the House in the fall, and faces multiple Democratic opponents in the redrawn Minnesota district where she is running. She had more than $1 million in campaign debt stemming from her presidential bid as of the end of March.
- This story was posted at 6:13 p.m. and has been updated.