What is totally missing in action on this thread, is the possibility that rational public policy
matters. And by extension, if we have rational public policy, the economy will improve and if not, the US economy will get worse. And then by further extension, if a given general policy advocated by "the majority ruling party" does not improve the US economy, the proper remedy by the "rational" voting public is to throw the rascals out. And after the rascals are thrown out, the other party gets its chance to prove its public policy can and more importantly "does" improve the American economy. (As I also admit, just defining the US economy as the lone measure of the USA's prospects and general welfare is a limited definition of the fruits of wise public policy. But for the lack of a better term, I use the US economy.)
Still, for the first 10 score and 18 years of the USA's constitution government, that better improve the American economy or get voted out has driven US politics.
However that rational public policy logic totally changed post 1994 with Newt Gingrich's
so called GOP contract with America. While there is nothing intrinsically wrong with a contract with America in MHO. Said GOP contract has morphed into a GOP perversion of American Governance. As the GOP applies and asserts the reasoning that the GOP always has the best answers for America, And therefore, any candidate for public office who has a R in front of their name is wonderful, and any candidate for public office who has a D in front of their name is American public enemy number one. And even if GOP policies don't improve the American economy, its still the GOP's duty to throw America government into gridlock until the next election. Sadly on the downside, when the GOP does get in charge, the American economy invariable goes into the toilet. But still when the dems do get in charge, GOP gridlock makes it impossible to change the unwise GOP public policies that hurt the American economy in the first place.
As I can only hope, post 11/2012, that US GOP gridlock ends. As Abe Lincoln said, a house divided against itself cannot stand.