Former state Sen. Kelli Ward, who is challenging Arizona Sen. John McCain in the Aug. 30 Republican primary, won her second congressional endorsement Monday.
Kentucky GOP Rep. Thomas Massie endorsed Ward and donated $2,000 to her campaign.
A statement from the Ward campaign called Massie a "major figure in the so-called liberty movement begun by former Texas Congressman Ron Paul who has also endorsed Ward."
“We need Dr. Ward in the U.S. Senate to stand with Rand Paul and Mike Lee," Massie said in a statement, referring to the junior senators from Kentucky and Utah.
"Her insights from the real world as a mother, military wife, and physician will be an invaluable addition in the fight against career politicians to reduce spending, reverse our national debt, repeal Obamacare, and return to a responsible foreign policy," Massie said.
Texas Rep. Louie Gohmert was the first member of Congress to endorse Ward. She's expected to pick up another congressional endorsement from a member of the House Freedom Caucus soon.
Correction: A previous version of this article stated that Massie is a member of the House Freedom Caucus.