I don't know a whole lot about Rubio, so thought I would watch this video to see what he had to say.
I was impressed with his style of speaking. When I hear Obama speak, it sounds like he's orating. Rubio talks to his audience. I think that this style differential may be why Obama comes off to some as "aloof". Obama can use folksy words and phrases, but it requires more than that to seem "in touch".
It wouldn't surprise me at all if Rubio has a Presidential future. Can he hold onto the ideals mentioned in his speech? A large question to watch unfold.