In 2012, he Won more votes than Richard Shelby did when he was elected to the Senate.
Regardless of the truth of the allegations, Alabama Republicans did not believe or trust him.
The Rino Liberal elite faction did not trust him. The George HW Bush style country club Republicans did not trust him. The rank and file people did.
In part because of his history that had twice caused him to be removed from the State supreme court.
Moore is legally and morally right in both the Ten Commandments case and the F@Gggot marriage case. Everyone else on Alabama's supreme court was a go along to get along milquetoast coward who is perfectly accepting of Federal Judicial overreach.
He was seen as a nut.
With massive amounts of help from the Liberal Lying media weapon system that portrays anyone who wants to curb the power of Washington DC as a "nut."
Kavanaugh was portrayed as a serial rapist. So? They are liars.
In fact, if these same people trusted Roy Moore, he'd be doing better than 10% in the GOP primary polls.
Face it, dude -- the guy's a loser, and his inane lawsuits and public temper tantrums have gotten too tiresome and predictable even for a lot of people who supported him in the past.