Is Obama unstoppable?

[°Leprechaun]

I voted for
"They'll screw it up by picking [insert candidate here]"
Because I believe that the Republicans would have to pick an outstanding
candidate to have a chance against Obama.

All of the following are possible answers (for me), however:

The economy has to go into a double dip recession
They don't stand a chance (well the do stand a chance but not a good one)
Still too early to tell (this may be the best answer for obvious reasons)

[°Leprechaun]

I would insert Huckabee, but that is because he is a likely candidate, it may be someone who hasn't been talked about or even someone like Jeb Bush. Huckabee is not necessarily a terrible candidate, although he is very conservative, but Obama could beat him according to recent polls.