The former President revoked his endorsement of the conservative congressman after he said that the party needed to look to the future.
At the time, the polling numbers for the Republican primary against the former Business Council president and CEO were stagnant and the candidate endorsed by the retiring GOP Sen. Richard Shelby was lagging in fundraising.
After Trump backed out of his onetime preferred candidate, a major rebound was made by Brooks.
Alabama is one of the most deeply Republican states in the country, and Trump has a huge amount of goodwill among its huge swath of conservative voters.
The congressman is near the top of the pack in the most recent polling, despite Trump snubbing him.
The top two vote-getters will advance to a June 21 runoff if no candidate gets over 50 percent of the vote on Tuesday.
The latest survey conducted by Cygnal and commissioned by Alabama Daily News and Gray Television shows her ahead with 30.8 percent of the vote. In third place, with 24.3 percent of the vote, was Durant, who was not far behind with 28.5% of the vote.
The survey of likely GOP primary voters had a margin of error of 3.88 percent and found that 6.4 percent chose another candidate while 10 percent were undecided.
In a March Cygnal poll, Durant got 34.6% of the vote, with second place getting 28.4% and third place getting 14.1% of the vote.
According to the latest poll by the college, the lead was held by Britt with 32 percent of the vote, followed by Durant with 26.4 percent, and Brooks with 25.1 percent.
The congressman has more than doubled his support since March, when he only had 12 percent of the vote.
Despite the public rejection of Trump, he continues to make false claims about election fraud.
He has called for the removal of McConnell as the leader of the caucus.
His focus on immigration issues and election integrity has endeared him to many voters who have been steadfast in their support of Trump.
While speaking with The New York Times, he called the man a John McCain-type of Republican and branded him aMitch McConnell-type of Republican.
He said that conservatives are figuring out that he is the only conservative in the race.