Because his conservative bona fides, proven over a twenty year record in three legislative bodies, far outweigh his moral failings.
Romans 3:23 and all that.
Don’t you think having to quote the bible in defense of your candidate is a sure sign that you have the wrong candidate?
Apparently his prostitute problem outweighed his political record to the voters. You are apparently the only one who is surprised.
He was the wrong guy. You don’t run a guy with a prostitute problem. It’s not that complicated.