While I confess I'm not aware of every detail of Rubio's life or background I'm not entirely sure why you would say that.
Unelectable? I'm not sure where this comes from. I googled his approval rating and the most recent favorable rating was 52/32 in Florida after the convention.
Corrupt? I confess I don't know what this is in reference to.
No record to run on? He's was a state senator for 10 years and has been a US Senator for two. By 2016 that would be 6 years. Obama was a state senator for 7 and US Senator for 3 years when elected. So if "no record to run on" is in reference to a lack of experience, there were many who thought the same about Obama (myself included).
Again, I'm not a Rubio biographer, but I like what I've seen. He's a strong fiscal conservative and is very good at arguing for its cause. In the few interviews I've seen with him (daily show and a few others) he has handled himself well and doesn't back away from questions. That is his biggest strength, IMO. As for him being Hispanic, obviously, that is something that the GOP could use (sad to think of it like that, but true). But I don't think talk of him as a rising star in the party is solely based on that. He's one of the few younger, more exciting people within the GOP. Obviously, all of this 2016 stuff is conjecture by all of us and who knows how the next 4 years will play out for the country as well as any of the candidates mentioned in this thread. But I certainly understand why many (myself included) consider him someone to watch.
Edit: We had a thread a while back about Rubio Stewart "debate". In case anyone wants to check it out. It has the links to his apperance.
http://forums.prosportsdaily.com/sho...d.php?t=734417