How Roy Moore Could Actually Win Alabama’s Republican Senate Primary

After Doug Jones won Alabama’s U.S. Senate race in 2017 — the first time a Democrat had won a seat there in 25 years — it seemed as if Roy Moore’s political career was over. After all, he faced allegations that he initiated unwanted sexual contact with teenage girls when he was in his 30s. (Moore has denied the allegations, dismissing them as “fake news.”)

But now Moore has decided to run for the Senate again. On Thursday, the former chief justice of the Alabama Supreme Court announced his bid...