I've been thinking about this for some time, but today I decided to look a bit more into it. I think the biggest mistake the progressive community has made on this primary cycle was the Dems for Mitt effort in Michigan.
Before the primary, McCain was beating Romney in every poll. Then Markos made the call for clusterfuckingthe republican primary with dems voting for Romney since the dem primary was irrelevant. In the end Romney beat McCain by 80,326 votes. And Hillary beat Uncommited by 90,389 votes.
Probably if there was not the Dems for Mitt effort Hillary would have either lost to uncommited or won by a very thin margin, and now Michigan wouldn't be relevant anymore (and if she had lost to uncommited I doubt she would be still in the race).
A quick disclaimer: I'm from Brazil (and live here in Rio de Janeiro), so I can't vote. But I could be counted as an Obama supporter. I'm also a big Bill Clinton admirer and a long time reader of this site (from before the Scoop days). This diary is NOT an attack on Markos who I highly regard, just a thought about something I think was a big strategic mistake and which we should learn with it.
I haven't looked for it to quote but I remember a post Markos made about Dems for Mitts that he told that most of the times republicans tried dirty tricks like that it ended up badly for them, I think this time it ended up bad for us.