"56.1% of Obama voters didn't know that Obama started his political career at the home of Bill Ayers, an unrepentant terrorist". That actually surprised me as this charge was on tv, radio, newspapers, blogs etc. Maybe they believe that Obama didn't know who Ayers was in 1995. I don't know.

" 86.9 % of Obama voters though that Palin said that she could see Russia from her "house," even though the quote actually came from Saturday Night Live."

CHARLES GIBSON: What insight into Russian actions, particularly in the last couple of weeks, does the proximity of the state give you?

SARAH PALIN: They're our next door neighbors and you can actually see Russia from land here in Alaska.

Also, the Fox morning program, was the first I saw that gave the "You can see Russia from Alaska" spiel as an attribute of Gov Palin's. I think its very understandable that some people easily confused the specific spot from where Russia can be seen..The important part is that absurd statement was put forth as foreign policy knowledge.

"57.4% of Obama voters could not correctly say which party controls congress."
According to the National Election Survey done after every national election, in 2002 72% of all voters didn't know who controlled congress and 56% of all voters didn't know in 2004. I haven't seen the 2008 results yet but that 57.4% isn't a surprising number for all voters.

82.6% of Obama voters could not correctly say that Barack Obama won his first election by getting opponents kicked off the ballot

You mean the legal challenges to petitions that were found to be correct? Nothing more than careful negative wording by Boortz, et al.

88.4% of Obama voters could not correctly say that Obama said his policies would likely bankrupt the coal industry and make energy rates skyrocket
He said no such thing. In an interview with the SF Chronicle (which is where this got started)he said "...What I have said is that for us to take coal off the table as a (sic) ideological matter as opposed to saying if technology allows us to use coal in a clean way, we should pursue it.
So if somebody wants to build a coal-powered plant, they can. It’s just that it will bankrupt them."
Clearly meaning that greenhouse gas fines of current coal technology would bankrupt a company but if the technology is there we should pursue it.