It's the biggest primary contest yet - and no, we're not just saying that. To be fair, Arizona isn't really in the picture today (we can pretty much count those delegates for Romney). But in Michigan, it's a different story. One of the more interesting stories to develop: Rick Santorum is using a robo-call encouraging Democrats to vote for him, taking advantage of Michigan's open primary. The idea is to "send a message" to Mitt Romney. Romney, meanwhile, derides the tactic as a "new low" designed to trick voters. Will it work and prove a blow to Mitt Romney? We've got the special election desk out today as MSNBC's all day coverage gears up for a pivotal night in Decision 2012.
PANEL
Robert Traynham, MSNBC Contributor (@roberttraynham)
Katrina Vanden Heuvel, Editor & Publisher, The Nation (@katrinanation)
Karen Finney,Columnist, “The Hill”/MSNBC Political Analyst (@finneyk)
Steve Kornacki, Salon.com (@stevekornacki)
GUESTS
Jon Ward, Huffington Post(@JonWard11)
Colin Goddard,Brady Campaign to Prevent Gun Violence (@clgoddard)
BULLPEN
Chuck Todd (@chucktodd)