Something similar to this, but on a much larger scale, of course and obviously the circumstances are different;
http://www.suntimes.com/news/jackson...on-harbor.html
It's down to he final week of the election and it looks like there's a strong chance Romney will lose. And a cabal of far right wingers in the congress and the military decide they just aren't having it. Somebody has to step in and "save America". Americans wake up one morning, days before the election to hear, "Sorry folks the election has been suspended. President Obama has been arrested."
Think such a thing is really all that far fetched?
Dave