Looking ahead to 2024, Florida Gov. Ron DeSantis and the Republican Party should take their cues from former President Ronald Reagan. After Republicans’ disappointing midterm performance, a showdown between DeSantis and former President Donald Trump seems certain. Trump has already begun taking shots at DeSantis, calling for him to disavow a 2024 run as a sign of “loyalty” and to “wait his turn.” But what good would that do for the conservative movement? Indeed, any true MAGA faithful should welcome and support a trial by fire from other rising stars of the Right. It’s the best way to ensure that...