Senate prepares new Iran sanctions bill before State of the Union
Ambassador Power warns new legislation "dramatically undermines" nuclear talks.
President Barack Obama waits with Sergeants at Arms and Members of Congress before entering the House Chamber to deliver the State of the Union address at the US Capitol in Washington, Jan. 28, 2014(photo credit: OFFICIAL WHITE HOUSE PHOTO / PETE SOUZA)ByMICHAEL WILNER
