 Clark County usually votes for the winning presidential candidate.It voted for Ronald Reagan twice and for Bill Clinton twice.The last three presidential elections where Clark County did not vote for the national winner were 1968, when it voted for Humphrey over Nixon, and 1988, when it voted for Dukakis over Bush, as well as in 2016 when the county narrowly voted for Democratic nominee Hillary Clinton over Republican nominee and winner of the election Donald Trump.