Frist could beat Hillary. But otherwise, I can think of few Democratic nominees where it would be a definite lean Frist. Biden, Bayh, Richardson, even Warner could beat Frist. He's like a less charismatic version of Bob Dole.
And he's a cat killer
What are you going on about?
I recently found out what people meant by calling hima cat killer.
When Frist was a medical student, he went around to cat shelters, adopted cats and said he'd give them a good home. He would actually perform experiments on the cats so he lied about giving the cats a good home.
Was it stupid for him to lie about this? Yes but I doubt it would stand in his way of becoming President. It certainly doesn't mean that he's unqualified for the office.
Clinton lies about a blowjob, Frist lies about cruelly murdering animals. Which is worse?
You're also pretty naive if you think this won't turn off any voters. Imagine the 527 ads that would run showing cute little kittens and talking about Frist is a cat killer. You may think it's stupid and it may be, but thinking no one would care is naive.