Ezra Klein explains the lesson to be learned from Obama picking Rev. Gene Robinson to speak:

Politicians respond to incentives. To noise. To anger. Warren, on some level, was a response to the loud protestations of evangelicals who believed the Democratic Party had no place for them. It's hard to see Robinson is anything but a response to progressive activists who sense that Obama was more willing to risk cross those who supported him than those who opposed him. Erase the anger from either side and it's not worth Obama -- or any president -- taking the risk to placate them. But this is a step in the right direction. This is genuinely inclusive. If it was the plan all along, the Obama administration sure did a good job keeping the secret. And if it wasn't, then equality activists have something to be proud of this morning. They changed the incentives.

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