The primary race is not "over" - and won't be for a while

I first must thank Weigel for pointing this out:

Political reporters make for lousy gravediggers. Find a primary, pick a day, and I can point you to a story pronouncing the campaign “over” or “almost over” or over, pending the judgment of a proverbial Fat Lady.

The important part of his article:

We know the race will last to April thanks to pure, heartless algebra. The 2012 Republican nominee will need to win 1,144 delegates. The number of delegates semi-officially pledged to candidates as I type this out: 161. The number of delegates that will be pledged by the end of Super Tuesday, one month from now: 662. Rick Santorum could take every single delegate away from Mitt Romney (Good luck in Massachusetts!) and be barely halfway to the nomination.

It feels slower than the last primary. Because it’s much, much slower. A catastrophic and months-long leap-frog competition forced 21 states into 2008 Super Tuesday primaries or caucuses. By Feb. 5, 2008, 1,069 of the GOP’s delegates—41 percent of the total—had been chosen. It was a fluke, no one wanted it to happen again, but it turned out like a childhood trauma in reverse. So much fun was had, the “this can wrap up in a hurry” concept stuck around.