The president seems driven chiefly by the sense that A.I. is the way to economic growth, and nothing can be allowed to stand in its way.

The Congressional Black Caucus’s political wing backed James Talarico, who defeated a Black opponent in the primary. He faces Ken Paxton, the Republican state attorney general, in November.

President Trump had little interest in artificial intelligence until a fateful meeting in Las Vegas two years ago. Now, Mr. Trump sees A.I. as the defining technology of our age. Our White House correspondent Jonathan Swan tracks Trump’s journey to A.I. evangelist.