New Hampshire has always been first with presidential primary voting and Iowa has been first for the parties to caucus, but every state wants to play an important role. Florida would not settle for February 5, the same day as New York and California, so it moved up to January 29. But South Carolina Republicans want to be first in the South, so today they moved their primary to January 19. State laws in New Hampshire and Iowa may trigger a chain reaction, meaning that the first actual balloting will be held this year. We unravel all this with political scientist Dennis Goldford of Drake University and John Mercurio of National Journal's Hotline, a latest-word website for political junkies.