Even with TeaParty victories, the Senate will still be controlled by the RINOs, and they will have to deal with a last term President who will be emboldened to finish what he started in his first term, the destruction of the US.
Obamacare will be funded and it will destroy the economy.
In that case, ABOers are really delusional if they think that same Congress is going to "hold Romney's feet to the fire," particularly if Romney gets a landslide win and thus a "popular mandate."
You are even more delusional if you turn away from the fact that Romney, moderates, and the MSM would certainly pervert that landslide, a referendum on Obama, into a "the public loves Romney!" popular mandate for Romney's progressive statist brand of "Republican."
I repeat: the ONLY smart way to vote is to vote for a plurality in order to weaken the mandate of whichever liberal statist wins. And the only way to vote for a plurality is to vote third-party.