In 2015 , Humphrey endorsed Ohio governor John Kasich for President in 2016 . During the 2016 Republican presidential primaries , Humphrey was a leader of efforts to try to block Donald Trump from securing the nomination at the Republican National Convention . He stated , " I would only vote for Hillary in the event of a very close contest . Meantime , I 'm hoping the Republican leadership , at long , long last will show the courage and principle to denounce Trump and to demand he renounce the nomination or face a reconvening of the convention . " On 6 November 2016 , two days before the election , Humphrey officially endorsed Democratic nominee Hillary Clinton . In November 2016 , he left the Republican Party and became an independent
Republican National Convention
2016 Republican National Convention
Gordon J. Humphrey