Edwards + Kucinich > 15%?

· long story short

According to WHO TV in Des Moines, the Edwards and Kucinich campaigns have agreed to combine their caucus support if either candidate isn’t “viable” (meaning has less than 15% support). It’s not clear if this is a caucus-by-caucus plan or something they plan to coordinate statewide.
It’s also not clear what happens if both are below 15%: that is, which one gets the support then? This is a clue, though, that the Edwards people know that they don’t have to ground game to convert his last-minute surge in the polls into comparable caucus votes.