The Invisible Primary, 2/16

Tracking the GOP race to 2012

An unruly Air Canada passenger took a swing at Mitt Romney while he was on his way to Vancouver, when Romney asked the passenger move his seat-back upright before takeoff; Romney called into a radio show hosted by Virginia Lt. Gov Bill Bolling; Rick Santorum will travel to New Hampshire to keynote the Cheshire County Republican Lincoln Day Dinner April 30; Sarah Huckabee, Mike Huckabee's daughter, will manage Rep. John Boozman's (R) 2010 Arkansas Senate campaign; and Bobby Jindal will publish a book called "On Solid Ground: Returning to America's Core Values" in July.