Are there any prominent liberal voices on the pro-gun side?

[DanTex]

So first off, this is an honest question, and I don't know the answer to it. To be clear, I'm not challenging the liberal credentials of anyone who posts here. I also understand that the fact that most liberal pundits hold a certain opinion doesn't automatically make that opinion correct. And so on.

But I'm sincerely wondering whether there is any liberal voice who I respect on other issues, and who also argues that, say, we shouldn't close the gun show loophole, or takes the pro-gun side on any of the other arguments that we've been having here.

What do I mean by "prominent liberal voice". Well, it's not really a precise thing, but I'm talking about pundits, columnists, TV/Radio hosts, etc. By prominent I mean someone a decent number of people on DU would know about, someone with a reasonably wide following as opposed to some random blogger. And no need to be stickler about who is really a liberal. In fact, for the purposes of this question, I'd even accept centrists like, say, Andrew Sullivan, Tom Friedman, Fareed Zakaria (but don't push it... and don't even try suggesting that David Brooks is anything but a right-winger!). Although I'm more interested in actual liberals.

Why do I care? Just curious really. It seems that whenever I come across a pro-gun opinion piece, even the ones that get posted here, you look at the author's other columns and you find things like "Obama is a big government socialist" or "Sarah Palin was right about ______". But I honestly don't know the answer -- maybe there's a whole slew of pro-gun liberal commentators and I just haven't found them yet. If so, help me out.