Too Little, Too Late? Santorum Declared Iowa Caucus Winner 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 Republican presidential hopeful Rick Santorum arrives for a press conference on January 19, 2012 in Mt. Pleasant, South Carolina. According to certified results released, he won the Iowa caucus. ( John Moore / Getty ) Produced by Marc Kilstein Produced by PRI and WNYC