Follow Friday: George Zimmerman's Facing Charges, Santorum Exits the Race, Ann Romney Defends Motherhood and More Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Rick Santorum waits to speak at the Lincoln-Reagan Day Dinner at Bowling Green State University. ( Mario Tama / Getty ) Produced by Hsi-Chang Lin Produced by PRI and WNYC