From ABC News, attached is Obama's job approval numbers compared to Reagan, which seems to clearly demonstrate that it's too early to even speculate on Obama's re-election.
BTW, I'm an independent voter. I've never belonged to a political party, but I vote regularly. I lean left, but I have voted for Republicans in various elections. So to answer your follow-up question; I voted for Obama last time, and barring any major policy shifts, scandals, demonstration of incompetence or a truly stellar Republican or third-party candidate, I will likely vote for Obama again.
I also urge you to vote...for
me, when it comes to giving out points. :-)