     And I'm Audie Cornish.  Today is the 16th anniversary of
the bipartisan welfare overhaul signed by President Clinton. The
law has become a major issue in this year's presidential
campaign. Mitt Romney insists President Obama gutted the law,
even though every major fact-checking organization says those
attacks are false.  NPR's Ari Shapiro looks at why the Romney
campaign is sticking to its guns.  ARI SHAPIRO, BYLINE: Mitt
Romney rolled out this line of attack two weeks ago.    SHAPIRO:
Since then it's become a constant refrain in more ads and on the
stump. Here was Romney last week in Zanesville, Ohio.  MITT
ROMNEY: Going out and saying he's going to take the welfare -
excuse me - the work requirement out of welfare. How in the
world could he not understand the power of work, the dignity of
work? And...  SHAPIRO: PolitiFact says Romney's claims are Pants
On Fire Bogus. The Washington Post's fact checker awarded four
Pinocchios, the top rating. And reached the same conclusion that
these claims are false.