Wasn't West somehow involved with a biker gang or something like that?
If by "Biker gang" you mean A Vietnam Veterans organization, you're correct. Klein's actually dealt with them too, which is why this smear is even more hilarious.
And I think you're underestimating West. He can probably hold this district in most elections assuming he wins this year.
If elected, West will probably run against Nelson for the Senate, and then maybe for national office if he wins that. If he can stay disciplined, he is a potential superstar - along with Rubio.