PRATTVILLE, Ala. — For Democrat Doug Jones to win a Senate race in Alabama, he needs some help from voters like 74-year-old Don Jockisch.

“I don’t know,” Jockisch, a Republican, said when asked whom he will support in Tuesday’s election, when Jones faces Republican Roy Moore, the former chief justice of the Alabama Supreme Court.

“Me and the wife are thinking about voting for Moore, but I just don’t like some of the things they’re saying about him,” Jockisch said as he walked into a Walmart here on a chilly Saturday afternoon.

Jockisch was referring to allegations from several women that Moore pursued them — and in two cases assaulted them — when they were teenagers and Moore was in his 30s. Moore has denied any wrongdoing.

Republicans like Jockisch are the X-factor in this race, and explain why a Senate race in the solidly Republican state is suddenly competitive.