"Campaign Spot" blogger Jim Geraghty writes in "For Better or Worse, the NRA Grades Candidates on Only One Issue" that some conservatives are miffed that the National Rifle Association looks likely to endorse the re-election of Sen. Harry Reid (D-Nev.), the senate majority leader and co-instigator of the Obama-Pelosi-Reid mega-government agenda.
As commenters to IGF has pointed out, the NRA is a nonpartisan organization focused on one issue-second amendment rights-and it supports conservatives or liberals who concur with it, which is one reason it's been so successful.
There really is no gay rights group that's comparable. The big Washington LGBT lobbies-even the ones whose bylaws claim that they're nonpartisan (and who once-upon-a-time truly were)-now overwhelmingly define themselves as part of the "progressive" coalition. These groups haven't been shy about treating non-gay issues as part of formal or informal litmus tests for candidate approval (this has been true not just of the Human Rights Campaign but even groups such as the Victory Fund, which maintains a pro-abortion requirement that trips up openly gay, pro-life Republicans who might have benefited from its support).
The clearly partisan gay groups (Stonewall Democrats, Log Cabin Republicans, GOProud) have their own role, which is different. But it would be constructive to have even one major LGBT group that would endorse and fund liberals or conservatives, Democrats or Republicans, based just on whether they supported legal equality for gay people. You might even begin to see more conservative Republicans break away from their party's anti-gay party line, just as Harry Reid and several liberal Democrats have broken from their party's anti-gun rights stance.