No, this isn't a matter of a guy having a heart attack and it's too late to take him off the ballot. This is much stranger than that.
Tim Murray, running against long-time congressman Frank D. Lucas, in a Republican primary race, says the guy who beat him isn't actually Frank D. Lucas. He says Lucas (and other congressmen!) were hung, and so died, in the Ukraine, back in January of 2011. He says Lucas has been replaced by a double, so the election shouldn't stand.
There's also an artificial intelligence robot involved. I am not making this up.
See
http://nymag.com/daily/intelligencer...ally-dead.html
By the way, Murray is Tea Party. Here's a link to a TP site with a bio:
http://teapartycheer.com/bios/west/o...murray-ok-bio/
Note the headline say "D-OK 3."

(The copy then switches properly to R.) One more indicator of the TP level of competency....
The thing is, this all hasn't just happened. The people who created the Tea Party were deliberately out to mobilize the people we see here, bumbling about on the political stage. They saw the uninformed and uneducated as a useful constituency for them--one they could use. One they could misinform all they want and they'd buy it. One easy to scare; one with resentments easy to tap.
But that anger can be turned on these manipulators, if the game is exposed.