The presidential primary battle heads to Arizona today, and all four GOP candidates are there for a debate tonight. Next Tuesday, the state will hold its primary and the winner will take all of Arizona's delegates.
Romney has a solid lead, helped by the state's early voting process. Can Rick Santorum's performance at tonight's debate make a difference? Dan Nowicki of the Arizona Republic talks with Madeleine about the intricacies of Arizona as a battleground for the GOP.
Dan Nowicki, political reporter for the Arizona Republic.