Not since President John Kennedy urged Americans to “ask not what your country can do for you but what you can do for your country” has the rhetoric of sacrifice sat this well with the public. Concern that the US confronts a huge crisis in the form of a global financial meltdown, plus an untapped desire since 9/11 to help the nation more, makes the public more receptive to the idea that sacrifice can be noble instead of just inconvenient. (The Christian Science Monitor, November 2, 2008.)
I recommend you listen to Dr. Leonard Peikoff's podcasting show of October 20 and his answer to the question regarding the election and watch Marina "Hot For Words" discussing the origins of some political words on the O'Reilly Factor show.
Related: My post, MTV CHOOSE AND LOSE ON MYSPACE.