Seriously, though, as a washed-up celebrity(let's not forget, John Waters cast him in Hairspray as a joke) turned insignificant congressman, I think he would need a niche issue to grab the public's attention. And
this is probably the closest he came to having one in his lifetime. But I don't know how you get the voters worked up about what, in most cases, amounts to copyright protection for millionaires. I think public opinion on such issues would run from about Who Cares? to Why CAN'T My Kids Use Huckleberry Hound For Their Christmas Pageant?
And the whole Scientology thing isn't gonna help him, either. He'd need to quit that, which would likely mean they try in some way to sabotage his future career plans.