Abelard: "If I am not mistaken, then the Democrats will compromise."
Eloise: "I agree: if you are not mistaken then the Democrats will compromise."
Abelard: "You agree: what I said was correct?"
Eloise: "Yes."
Abelard: "Then I am not mistaken."
Eloise: "True."
Abelard: "If I am not mistaken, then the Democrats will compromise. I am not mistaken. Therefore, the Democrats will compromise."
Source (sort of):
http://en.wikipedia.org/wiki/Curry's_paradox