SOMERSET, N.J. — President Donald Trump says he's hitting the campaign trail next week for Alabama Sen. Luther Strange.

Trump tweeted Saturday that he will campaign for Strange in Huntsville, Alabama, on Sept. 23. That's three days before a tightly contested Sept. 26 Republican runoff between Strange and Roy Moore, the state's former chief justice. They are vying to fill the U.S. Senate seat formerly held by Attorney General Jeff Sessions.

Trump says, "'Big Luther' is a great guy who gets things done!"

Moore was the top vote-getter in the August GOP primary. He has a loyal following among the state's evangelical voters. The winner of the runoff will face Democrat Doug Jones in December.

Trump announced the upcoming campaign appearance while spending the weekend at his New Jersey golf club.