If it's true...

...it's probably more predictive than any poll at this point. Via Political Wire...

Rick Perry has signed up 1,500 precinct leaders in Iowa, a source inside the campaign tells CNN. There are a total 1,774 Republican caucus precincts around the state, about 900 of which are combined.

Only Mitt Romney and Ron Paul have put in similar efforts to build a ground operation for the caucuses on Tuesday.