Scoop: U.S. Chamber jumps into Alabama's hot GOP Senate primary

Butch Dill / AP

In the big-money Republican primary for senator from Alabama, the U.S. Chamber of Commerce is endorsing incumbent Sen. Luther Strange over Alabama Chief Justice Roy Moore, cementing what has already become a high-profile race pitting Republican leadership against an insurgent social conservative.

President Trump endorsed Strange in the primary's first round — not because he especially liked Strange, but because Strange's challenger, Mo Brooks, had said a ton of negative things about Trump during the election campaign.