MONTGOMERY, Ala. — Firebrand jurist Roy Moore won the Alabama Republican primary runoff for U.S. Senate on Tuesday, defeating an appointed incumbent backed by President Donald Trump and allies of Sen. Mitch McConnell.

Moore clinched victory over Sen. Luther Strange to take the GOP nomination for the seat previously held by Attorney General Jeff Sessions. Moore will face Democrat Doug Jones in a Dec. 12 special election.

The crowd at Moore’s election party broke into loud applause as media outlets called the race. Former White House strategist Steve Bannon took the stage to introduce Moore as supporters waving flags cheered Tuesday night.

“We have to return the knowledge of God and the Constitution of the United States to the United States Congress,” Moore told the crowd. He also said he supports the president and his agenda.

Bannon declared Moore’s win a victory for Trump, despite the president’s support for Strange.