Here's another interesting article with some perspectives and observations on carrying a gun from a self professed liberal Democrat who likes guns, and the sees the usefulness of concealed carry.
There's also a radio interview with the author, as well:
In the end, he gave up carrying because, and I'm summarizing his thoughts, didn't like being in "Condition Orange" all the time. It's a decent read and I've listened to about 1/2 the interview.
He's pretty adamant that it's not the Bay Area of Ca. that's the most liberal enclave in the U.S. He says that title belongs to Boulder, CO.