Let them try calling off elections/martial law or whatever:
What Good Can a Handgun Do Against An Army?
http://www.freerepublic.com/focus/f-backroom/2312894/posts
The whole point of this article is that they won't have to call off the elections or declare martial law! What they will do is pass, using the same methods used to pass healthcare, both an "instant amnesty" law and an "instant voter registration" law.
Combine that with the new census which will tell us how (surprise!) many more "latinos" are here than we thought (which will be reported endlessly by the media, long before the official results are in), to get us used to the idea of how lopsided the 2010 vote will be for Obama and the Dems - when everyone you know is against them.
Even the sister who voted for Obama in 2008. Even the two buddies from the shooting club who thought it was time for change.
So, please consider re-drawing your line in the sand. The communists have long ago figured out that one and are planning around it.
They can, and will, seize the nation without firing a shot, without declaring martial law, and without doing door-to-door searches for guns. If those are the only things that will make you resist in some way other than voting, then there is a very good chance we will lose the Republic.