I don't think the gay marriage issue will be all that important in the fall.
And despite some people's wildly overblown fears or other equally overblown triumphalism PBO's opinion on same sex marriage is more or less irrelevant to the states which have banned it. Short of a SC decision throwing out DOMA or eliminating all bans, I think the changes will continue to be gradually done at state levels.

"When the snows fall and the white winds blow, the lone wolf dies but the pack survives."
Winter is Coming

Now this is the Law of the Jungle—as old and as true as the sky; And the wolf that shall keep it may prosper, but the wolf that shall break it must die.
As the creeper that girdles the tree-trunk, the Law runneth forward and back; For the strength of the Pack is the Wolf, and the strength of the Wolf is the Pack.