That Southern charm may soften the appearance of the actor-senator’s hardened conservative views. Last month brough the moment in the presidential campaign I’d been dreading. The popular conservative from my home state, fellow Tennessean Fred Thompson, entered the Republican primary. The pundits and “insiders” have dismissed the actor and former senator even before he declared his candidacy on late-night TV. Some claim he’s a Hollywood lightweight, but I’ve heard that before (Ronald Reagan). Some dismiss him as a Southern simpleton, but I’ve heard that before (George W. Bush). And I’ve even heard some claim he has a wealth of sexual...