Carl Edwards was in bluegrass country Tuesday when he visited with famed jockey Steve Cauthen at a horse farm to promote the NASCAR weekend coming up later this month at Kentucky Speedway. For all the recent talk about the double, which Kurt Busch last month became just the fourth driver to undertake, among auto racing railbirds there isn't much argument about NASCAR's version of the triple crown -- probably because the odds of anyone ever achieving it seem about as remote as a claimer winning at Churchill Downs. California Chrome will try to become the first horse in 36 years to sweep its sport's top three races -- will NASCAR have to wait that long before one driver takes championships in each of its top three series? As it is, it's been 20 years since NASCAR added a third national circuit in the form of the NASCAR Camping World Truck Series in 1995, and really only once during that span has a driver truly approached pulling off this elusive hat trick -- 2005, when former NASCAR Nationwide Series and Truck Series champ Greg Biffle finished tied for second in Sprint Cup points, 35 behind eventual victor Tony Stewart, and perhaps a few dropped lug nuts at Texas short of a title. More...