A top GOP super PAC with ties to Senate Majority Leader Mitch McConnell (R-Ky.) is targeting Rep. Mo BrooksMorris (Mo) Jackson BrooksWatchdog group seeks ethics probe over McCarthy's Jan. 6 comments Jan. 6 panel seeks records of those involved in 'Stop the Steal' rally Jan. 6 panel to ask for preservation of phone records of GOP lawmakers who participated in Trump rally: report MORE (R-Ala.) in the Senate GOP primary race in Alabama.
The Senate Leadership Fund released an ad Wednesday going after Brooks ahead of the August primary to fill the seat previously held by Attorney General Jeff SessionsJefferson (Jeff) Beauregard SessionsOvernight Hillicon Valley — Apple issues security update against spyware vulnerability Stanford professors ask DOJ to stop looking for Chinese spies at universities in US Overnight Energy & Environment — Democrats detail clean electricity program MORE.
The ad splices together clips of Brooks speaking out about then-GOP presidential candidate Donald TrumpDonald TrumpOhio Republican who voted to impeach Trump says he won't seek reelection Youngkin breaks with Trump on whether Democrats will cheat in the Virginia governor's race Trump endorses challenger in Michigan AG race MORE while attempting to tie him to House Minority Leader Nancy Pelosi (D-Calif.) and Sen. Elizabeth WarrenElizabeth WarrenFederal Reserve officials' stock trading sparks ethics review Manchin keeps Washington guessing on what he wants Warren, Daines introduce bill honoring 13 killed in Kabul attack MORE (D-Mass.).
"Mo Brooks attacked President Trump, siding with them — not Alabama conservatives," a narrator says in the ad, which portrays Brooks alongside the Democratic figures.
The Republican lawmaker repeatedly attacked Trump during the GOP primary, saying he couldn't be trusted and calling him a "serial adulterer."
Since Trump won the election, Brooks has become a vocal supporter of the president.
On Monday, Brooks released a new Senate campaign ad that said if he is elected, he will fight to have Trump's U.S.-Mexico border wall funded, even if that means a government shutdown.
But his past criticisms of Trump could pose a problem for him in the race in Alabama, a state which Trump won handily in last year's presidential election.
The GOP super PAC ad, titled "Trust," is part of the group's $2.5 million ad campaign in Alabama’s upcoming special election.
Steven Law, the head of the Senate Leadership Fund, said the special election will be a "test" to see if an "anti-Trump" candidate can win.
"The Republican primary for U.S. Senate in Alabama will be the first test to see whether someone as stridently anti-Trump as Mo Brooks can survive in a state that is so overwhelmingly supportive of the President,” Law said in a statement.
The primary is scheduled for Aug. 15, and it will be followed by a runoff in late September and a general election in December.
Brooks is one of several candidates in the primary challenging Sen. Luther Strange, who was appointed to the seat earlier this year by then-Gov. Robert Bentley (R).
A Brooks campaign spokeswoman did not immediately return a request for comment.