Former White House chief strategist Stephen Bannon reportedly said during a Monday night rally in Alabama that the Republican establishment faces a "day of reckoning."

“For Mitch McConnell Addison (Mitch) Mitchell McConnellGraham: GOP will confirm Trump's Supreme Court nominee before the election Trump puts Supreme Court fight at center of Ohio rally The Memo: Dems face balancing act on SCOTUS fight MORE and Ward Baker and Karl Rove and Steven Law — all the instruments that tried to destroy Judge Moore and his family — your day of reckoning is coming,” Bannon told the crowd, according to Politico.

Bannon made the remarks at a rally for former Alabama Supreme Court Chief Justice Roy Moore, who on Tuesday faces off against Sen. Luther Strange Luther Johnson StrangeSessions hits back at Trump days ahead of Alabama Senate runoff The biggest political upsets of the decade State 'certificate of need' laws need to go MORE (R-Ala.) in the GOP Senate primary runoff.

Bannon was referring to Senate Majority Leader Mitch McConnell (R-Ky.), former senior adviser to President George W. Bush Karl Rove, former National Republican Senatorial Committee Executive Director Ward Baker, and Senate Leadership Fund President Steven Law.

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“But more important, for the donors who put up the [campaign] money and the corporatists that put up the money, your day of reckoning is coming, too.”

President Trump campaigned for Strange Friday night in Huntsville, Ala. The alliance has put the president at odds with one of his former top advisers as well as his base of supporters.

Trump endorsed Strange in August before the Republican primary, a move that united him with Senate Republican leadership.

The winner of Tuesday’s runoff will head to the December general election to defend the seat vacated by Attorney General Jeff Sessions Jefferson (Jeff) Beauregard SessionsGOP set to release controversial Biden report Trump's policies on refugees are as simple as ABCs Ocasio-Cortez, Velázquez call for convention to decide Puerto Rico status MORE.