Chuck Hagel Provokes Senate Showdown 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 Former U.S. Sen. Chuck Hagel (R-NE) (R) speaks after President Obama nominated him to replace Leon Panetta as Secretary of Defense. ( Mark Wilson / Getty ) Produced by Jillian Weinberger Produced by PRI and WNYC