S&P 500 Price 1995 - Present.

Looks like a new, unsustainable bubble is in the works to me.  Unsustainable dot-com bubble in 2000,the next unsustainable one was the housing bubble in 2007, and looks like another unsustainable one in the works to peak sometime later this year or early 2013.  Note that the dot-com bubble in 2000 coincided with Bush 2's election, the 2007 one peaked only shortly before Obama's election, and maybe the currently forming bubble has to do with Obama's re-election question.