I never even knew he even stood for election,and what type of election was it local or state Jason?
The stats I can find say voter turnout is usually somewhere around 50-60%, so your question could easily be "why do so many people choose not to vote?"
I'm not sure if atheists as a group vote less than average voters, but atheists do tend to fall into several groups that vote less frequently. For example, the elderly and the partisan are more likely to vote and in general atheists in the U.S. are younger and more nonpartisan.
When/if they start widespread online E-voting, we'll see quite an increase in voter turnout among the youth and the non-religious. Aside from that, I'm not sure how to "fix" the problem. I admit I couldn't have cared less about politics before my 30's and barely care now, but I couldn't tell you why it doesn't matter to me. Social issues will get me riled up but the majority of political discussions make my eyes glaze over. I have to force myself to read up on issues. It's never been a subject that interests me and unlike most uninformed voters, I never felt obligated to vote for "a party" if I didn't know the candidates stance on the issues and I'm not going to waste my time throwing away a vote on Donald Duck just to pat myself on the back for having voted. Perhaps some people are more genetically or hereditarily inclined to be interested in politics and/or take the time to vote than others.
To rewrite your initial statement: I vote for whomever I disagree with the least, not the one I agree with the most.
I don't want to voluntarily dress up in a party or representative opinion straight jacket, and I only support and defend those political positions which happen to coincide with my own.
Also, it is everybody's civic duty to vote in a democracy. If you don't vote, your opinion is inconsequential and complaints invalid.
Let's look what we have had for the last 11 years. Unprovoked war in Iraq, torture, finance system in melt down, property values falling, unemployment, bailouts to the same banks that put us here and the same politicians get voted into office. Oh and we can't tax those with the money cause they are creating jobs, yea right!
Look at any politician at the national level and google where they get their money to run and you will see how they will vote on legislation.
Obama is more secretive on many levels than even Bush. We are now in 6 unfunded wars.
Anybody vote for this?
Well, I wasn't aware of any statistic relating to this, but some people don't vote, since there isn't very many difference between the two political parties. They both usually only play lip service and pander to specific corporations allied with either one of the two parties. Some people don't play with the lesser of two evil crap, after all which is better, a turd sandwich or a giant douche bag? (South Park FTW) Then again, there is the fact that many people, including atheist just don't care about politics.
I do not generally vote due to lack of belief in the system. If pressed I will vote defensively-to lessen what are infringements of liberty. I disagree with those who proclaim that non-voters have no right to complain. Rather, I follow George Carlin on this, who said voters in fact are the ones that cannot complain, as they approve of the system by participating in it. I am well aware of the people who fought for this right, and those who are still denied it. Holding that right entails my choice not to exercise it, and doing so in a way others do not approve of. In any case, my single vote will not change things. It is a civic ritual without real substance.
I also will not vote for the "lesser of two evils". By definition, that would still be evil. If you cannot find anything to vote for, do not at all.
I think when one asks "Why do so many atheists choose not to vote?" it's incumbent to demonstrate that fact in some way. Otherwise it's kind of like the old "Have you stopped beating your wife?" question asked without the prior offer of any evidence of beating.