Ouch. And again I say, ouch.

Mary Katherine Ham at the Weekly Standard blog has assembled this collection of clips into what she calls “Obama’s Attack Ad on Himself”:

The number of fundamental policy positions on which Obama has simply and brazenly reversed himself is staggering, especially (as MKH puts it) while “floating above us all as the post-partisan redeemer of America.” Ham expresses regret at not having posted this video earlier; I regret it also, since it’s over three and a half minutes long (way too long for a TV spot) and won’t be carried anywhere but the Web; if it had been released earlier, it might well have filtered into TV news coverage. I should note that I don’t say that as a knock against her (it’s a very effective clip collection, and good on her for getting it out); just as a measure of agreement that it’s a shame it took longer to assemble the requisite video than she expected.

More here, here, here, and here. Jim Geraghty sums up the message: “All Barack Obama Statements Come With an Expiration Date. All Of Them.” The blog post that follows that title, a roster of major policy positions that make up Obama’s flip-flop playlist, is truly breathtaking; a wonder to behold.