Setting aside the Mayoral race for a few inches ... consider what the Gertrude Stein Club of Pittsburgh and the Steel City Stonewall Democrats.
It is a little confusing figuring out the actual slate for the General Election, but you can follow through to read the questionnaires for yourself.
Last spring, the Allegheny County Democratic Committee sponsored a first ever LGBT forum. If you are so inclined, you can check out my review of what the official endorsed Dems had to say about gay issues.
Most importantly, vote.