Rep. Bradley Byrne Bradley Roberts ByrneBottom line Jerry Carl wins GOP Alabama runoff to replace Rep. Bradley Byrne Jeff Sessions loses comeback bid in Alabama runoff MORE (R-Ala.), who is running to unseat Sen. Doug Jones (D-Ala.) in November, released a new attack ad against fellow GOP primary contender and former Attorney General Jeff Sessions Jefferson (Jeff) Beauregard SessionsTrump's policies on refugees are as simple as ABCs Ocasio-Cortez, Velázquez call for convention to decide Puerto Rico status White House officials voted by show of hands on 2018 family separations: report MORE.

In the new 30-second ad, Bryne criticizes Sessions for being forced by President Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE to resign as attorney general.

The ad also states “Hillary [Clinton] still ain’t in jail," a possible dig at Sessions' record as attorney general.

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"Lock her up" was a common refrain that was chanted about former Democratic presidential nominee Hillary Clinton Hillary Diane Rodham ClintonWhat Senate Republicans have said about election-year Supreme Court vacancies Bipartisan praise pours in after Ginsburg's death Trump carries on with rally, unaware of Ginsburg's death MORE during Trump campaign events in 2016. The quote appears to be a reference to this chant.

Similarly, the ad criticizes former Auburn football coach Tommy Tuberville who is also in Alabama's Republican primary Senate race, saying that Tuberville "can't keep a job" and wants to allow illegal immigrants into the state. Tuberville was asked to resign as Auburn's head football coach after the 2008 season.

Byrne himself appears at the end of the ad and lists reasons why Alabamians should vote for him.

"97 percent pro-Trump voting record, fought impeachment, pro-life, pro-gun, pro-wall and I'll fight for Alabama," Byrne says in the ad.

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In a poll this week, Sessions led the pack of GOP-contenders with 31 percent, Tuberville at 29 percent in second and Byrne in third with 17 percent.

Sessions' campaign spokesperson John Rogers responded to the ad saying, "When a candidate is desperate and losing, they always attack. Unfortunately, that’s what we are seeing not only from Bradley Byrne, but also from Tommy Tuberville."

Tuberville also rebuked the ad, saying it was full of "lies" and "baseless attacks," according to Yellowhammer News.

Voters in Alabama will vote in the race's primary on March 3. Whoever wins that election will face Jones, who beat former Alabama Chief Justice Roy Moore Roy Stewart MooreVulnerable Senate Democrat urges unity: 'Not about what side of the aisle we're on' Sessions hits back at Trump days ahead of Alabama Senate runoff Judge allows Roy Moore lawsuit over Sacha Baron Cohen prank to proceed MORE for the seat in 2017.