From WNYC in New York, this is NPR's On the Media.

Brooke Ladstone is out this week.

I'm Bob Garfield.

As of Tuesday morning, the narrative was so easy to digest.

Barack Obama's string of 11 straight primary victories had turned erstwhile

frontrunner Hillary Clinton into a tragic, desperate figure who should, for the good of her party,

be prepared immediately after the Texas and Ohio vote tallies to concede the race. But then Clinton

screwed up the narrative by beating Barack Obama in Texas and trouncing him in Ohio.

She didn't collect enough delegates to put her ahead of Obama, but she earned something ever so much more valuable, momentum.

Today it was all about momentum for Senator Clinton, so much so that she could finally do something she hasn't done in a long time.

Take a nap. He's certainly still the frontrunner. No question. But she has the momentum today,

and she takes that with her. Defensive last night after Hillary Clinton reeled out three straight

wins in Ohio, Texas, in Rhode Island. So who's got the momentum now? You know momentum. That's what

Clinton had as the prohibitive Democratic favorite until the Iowa caucuses,

but then she lost it to Obama, who was supposed to ride the big moe into a New Hampshire primary victory,

but failed to do that, giving the momentum right back to Clinton,

who was to use it to sweep up delegates on Super-duper Tuesday,

except that she didn't, surrendering momentum once again to Obama, who was to use it to sweep up delegates on super-duper Tuesday, except that she didn't, surrendering momentum once again to Obama,

who was all but declared the nominee by the media until Tuesday's Texas voting,

and, well, you know, suddenly the narrative isn't so easy to follow.

Tim Noah is senior writer at Slate, and he says enough already with this

momentum talk. The idea of momentum is very hard to define and in some degrees is invented out

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