Citizens’ United Political Victory Fund, the PAC associated with the conservative group Citizens United, is endorsing Chad Mathis in the race to replace retiring Rep. Spencer Bachus (R-Ala.).

According to details shared exclusively with The Hill, the group will contribute $5,000 to Mathis’ primary campaign and is backing the orthopedic surgeon in the race in part because of his medical background.

“As a surgeon, Dr. Chad Mathis has a unique perspective of the ill-effects of Obamacare and how this flawed legislation is killing American medicine,” said David Bossie, Citizens United president.  “He will be able to debunk the many myths the Left puts forth when attempting to sell Obamacare to the American people.”

Bossie added: “Dr. Mathis is a constitutional conservative who will stay true to his core conservative values when he comes to Washington and will not be corrupted by power.  He will be a conservative leader in the U.S. House who will not bow to establishment pressure when the going gets tough.”

Mathis is facing four other Republicans in the primary to replace Bauchus: Businessman Will Brooke, state Rep. Paul DeMarco, businessman Tom Vigneulle and Alabama Policy Institute Founder Gary Palmer.

Mathis has already nabbed the endorsements of the Madison Project and FreedomWorks’ PAC, both groups that typically get involved in GOP primaries to support conservative candidates.

And he had a strong fundraising showing in the fourth quarter, raising $356,000, secondly only to DeMarco, who raised $360,000.

The district is solidly Republican, so the main fight is for the GOP nomination — and whoever comes out as the most conservative candidate will be favored to win.