Perhaps I should have called this the States Stance on the 2nd Amendment. In any case, I found a very nice piece of work on Concurring Opinions which breaks down where the stats have fallen on the DC Gun Ban Case (DC vs Heller).

My home state of Texas was the first to file an amicus brief in support of Heller (to overturn the DC Gun ban as unconstitutional). I am not sure who on the state side makes the decision to file a brief or not - probably the Governor or Attorney General.

The following is a map of the states who have, as of this post, file a brief in support of Heller:

The following is a map of the states who have, as of this post, filed in support of DC:

Mike, over at Concurring Opinions, goes on to add an interesting bit of commentation on how those same states voted in the 2004 election:

Of the 31 pro-Heller states, 26 voted for George W. Bush in the 2004 Presidential election, while five (Michigan, Minnesota, New Hampshire, Pennsylvania, and Washington) voted for John Kerry.

Of the 14 “neutral” states, five (Arizona, Iowa, Nevada, North Carolina, and Tennessee) voted for Bush, while nine (California, Connecticut, Delaware, Illinois, Maine, Oregon, Rhode Island, Vermont, and Wisconsin) voted for Kerry.

And all five of the pro-D.C. states (Hawaii, Maryland, Massachusetts, New Jersey, and New York), as well as the District of Columbia itself, voted for Kerry in 2004.

Thanks Mike, for the nice bit of work.