Even if you see him as stupid, that is still your opinion (possibly mine as well), but people's opinions of who is and who isn't stupid should not decide who can and can't vote.
No, because when you vote you have a direct impact on the outcome of future legislation. Atleast that's the belief of those of us who still believe in the idea of America being a democracy representative of the people [some would argue against, but not the topic].
Having such a tenuous grasp on not only gun control [apparently his only political motivation to vote, and one he's severely uneducated on] but most likely a plethora of other critical issues strikes fear into me because it's foolishness like this that has ruined our government's credibility for the most part. You cannot tell me that a majority of our House being ideologues for either the far right or the [still right+] left is a coincidence. They pander to the types who decide an opinion is fact and then run with it. Then mix it with this cute epidemic we have nowadays I like to call Party Patriotism; where you [the proverbial 'you'] only love the country if your party runs it, hate the government if not. It's annihilated our union. Not once in my life has there been a time where a D and an R can find so little common ground in policy terms.
I'm not saying being stupid should automatically disallow you from being able to vote; I'm not even that smart nor do I claim to be more than others. There should just be a 'comprehension of issues' requirement added to the whole registration to vote process. Basic questions on topics that the legislation they help to cause will inevitably have an impact on. Perhaps even questions concerning candidates; tailored to which party they are registering as. It's not a perfect solution but it'd be a first step to removing the Akins from the House and filtering educated policy into our government.
If we have a test for people when they're simply trying to become citizens of our nation, we should have a similar test if they wish to have an effect on our policies. Sorry. If you are a fool with bull-headed out-of-fact opinions like Montague, you shouldn't be allowed to vote. His opinion will not change no matter what Obama or Democrats would do to support and proliferate heavy weapons across our country. It's the same issue we see with the NRA staunchly supporting Romney the ban-assault-weapons-bill-guy.