The voter turnout in yesterday's Iowa Caucus has astonished every informed observer. It was nearly double that of 2004. The number of young voters *tripled*. But this doesn't signify a newfound interest among iowans in politics across the board. Because it was the democrats that Iowans came out for in such large numbers. Obama, who won a state that is 92% white and which voted reliably and overwhelmingly for Bush in the last two presidential contests, got *three times* as many votes as Huckabee, the Republican winner.

We don't know yet how far this will go. But he's right -- this moment will be remembered.