Sessions announced his candidacy Thursday in the already-crowded race of Republicans taking on incumbent Democratic Sen. Doug Jones. He previously forfeited his Senate seat after Trump was elected to serve as the attorney general.

When asked if he would endorse Sessions, Trump said he has not yet decided.

“Well, I haven't gotten involved," Trump told reporters. "I saw he said very nice things about me last night, but we'll have to see. I haven't made a determination.

Sessions' campaign appeared to attempt to smooth his strained relationship with Trump in a video posted to his website, saying the president had his “full support.”

"When I left President Trump's cabinet, did I write a tell-all book? No,” Sessions said. "Did I go on CNN and attack the president? Nope. Have I said a cross word about the president? Not one time and I'll tell you why. First, that would be dishonorable. I was there to serve his agenda, not mine. Second, the president is doing a great job for America and Alabama and he has my strong support."

After Sessions resigned, Jones pulled out an upset victory in 2017 by becoming the first Democrat to win a Senate election in Alabama in 25 years. Republicans are eyeing the seat in 2020 to flip a Democratic-held position and keep a GOP majority in the Senate. The president’s endorsement is viewed as a key to securing the position.

The president’s contentious relationship with former attorney general is already a target of Sessions’ opponents in the race.