<sod >Charles Koch, a rich businessman and CEO of Koch industries, has said it is âpossibleâ that he would support Hillary Clinton ahead of Republican candidates in the 2016 election.< eod>< sod > Charles Koch, a Republican donor andÂ CEO of Koch industries, has said it is âpossibleâ that he would support Hillary Clinton ahead of Republican candidates in the 2016 election.< eod>