Former Attorney General Jeff Sessions is fighting for his old Alabama Senate seat after leaving Congress to join the Trump administration.

Former Attorney General Jeff Sessions blasted President Trump's "juvenile insults" on Saturday in a marked departure from his characteristically tepid responses during the years of attacks from his former boss.

Trump had tweeted that Sessions was a "disaster" while offering support for Alabama Republican Tommy Tuberville, who's running against Sessions for the Senate seat he held for decades before entering the Trump administration.

Earlier this year, Sessions said he had no regrets about the recusal, which came in response to scrutiny surrounding his contacts with Russia's ambassador.

When Sessions launched his Senate bid this year, he drew the Trump campaign's ire for attempting to tie himself to the president.

TRUMP CAMPAIGN BLASTS JEFF SESSIONS AS 'DELUSIONAL,' DEMANDS SENATE CAMPAIGN STOP PROMOTING TIES TO PRESIDENT.

Senate,” Trump campaign chief operation officer Michael Glassner wrote in a letter to Sessions at the time.