I didn't forget about Thatcher. Since then, however, we've only had a total of 9 years where the president was a Democrat, and even that was a bit of a fluke... Clinton won without a majority vote because Ross Perot bled away ballots cast for Bush 1.

Obama won because Bush was a fuck-up. Yeah, he's charismatic and all, but if the economy hadn't tanked before the election, and if McCain hadn't screwed himself by choosing that twit Palin to be his VP, things would have ended differently.

The USA is primarily a center-right nation. Even here in Massachusetts, which has traditionally been lambasted by the right as being a 'lefty' state, we had Republican governors for the vast majority of the last 20+ years.