Larry Johnson, who usually comments on security matters, has probably the best comment on tonights Presidential primary results, and how the polls could be so wrong.

So we are in for a long race, more like the political campaigns of my youth in 1968 and 1972.

Still, it adds up to a strong national desire to change direction.

Addition: and here is another more disturbing explanation, a historical artifact of polling when the issue of race is a factor - people tell pollsters one thing, do another in private. Check this out from David Kuo. Could it be?

Another addition on day after: turns out the polls were mostly right. The percentage forecast to go to Obama were mostly right on. What happened is that virtually all the “undecideds” broke for Clinton, rather than splitting who they went for. The error was in pre-election reporting of the polls, which tended to ignore the large number of undecideds, or to assume they would split the vote. Racism, in terms of saying one thing and doing another, not so much.