Charles Koch, 76, speaks during an interview, May 22, 2012, in his office at Koch Industries in Wichita, Kansas, where Koch Industries manages 60,000 employees in 60 countries.
Charles Koch, 76, speaks during an interview, May 22, 2012, in his office at Koch Industries in Wichita, Kansas, where Koch Industries manages 60,000 employees in 60 countries. MCT
Charles Koch, 76, speaks during an interview, May 22, 2012, in his office at Koch Industries in Wichita, Kansas, where Koch Industries manages 60,000 employees in 60 countries. MCT

Democrats, Koch money fight for airwaves in Senate battlegrounds

March 14, 2014 4:32 PM