The hosts of Fox & Friends on Tuesday suggested that politicians should be required to take an IQ or competency test to prove that they were knowledgeable about guns.

Host Steve Doocy pointed to a Monday New York Post column where Glenn Harlan Reynolds first floated the idea of an IQ test after a Colorado Rep. Diana DeGette (D) mistakenly asserted that gun magazines could not be reused.

"If somebody's going to be in Capitol Hill or in Congress and you're going to sponsor legislation or you're going to vote on something, you better know what you're talking about," Doocy opined.

"Wouldn't be interesting if there's a one-page test to be a citizen where they ask you who founded our nation, what year -- you have to learn all that stuff and people who want to become citizens kind of like studying it," co-host Brian Kilmeade added. "I'm just wondering if that would be a natural -- not an insult, but if all the sudden you want to leave the medical profession or leave selling insurance and work in the government, why wouldn't you want a competency test?"

"That's a great point," co-host Gretchen Carlson agreed. "Because obviously you can't be an expert on every issue. And there's a big difference between an IQ test and and a competency test. So people can be brilliant and still be dumb on certain issues."

"I could get nailed on a lot of gun stuff because I didn't grow up around guns," Kilmeade offered.

"You know, if you listen to Rush Limbaugh on the radio, he talks about how there are a lot of low-information voters and listeners out there," Doocy pointed out. "They don't really tune in to the election until the very last moment. This congressperson, obviously a low-information congressperson when it comes to gun legislation. But if you're going to sponsor legislation, you should know what a magazine is. Hello?"

Over the last few years, Saturday Night Live has repeatedly lampooned Doocy, Carlson and Kilmeade for factual mistakes and a general lack of knowledge about the subjects they cover.

Watch this video from Fox News' Fox & Friends, broadcast April 9, 2013.