United States presidential election in Arizona, 2016

The 2016 United States presidential election in Arizona took place on November 8, 2016, as part of the 2016 United States presidential election, which was held throughout all 50 states and D.C. Voters chose eleven representatives, or electors to the Electoral College, who voted for President and Vice President.

Arizona was won by incumbent President William C. Rutherford (D-Texas) with 52.47% of the popular vote over Senator Thomas P. Leach (R-Arizona), with 44.77%, a victory margin of 7.70%. This was despite the fact that it was Leach's home state, and that he was its junior Senator. Leach became the second candidate in four years, following Mitt Romney in 2012, to lose his home state. Rutherford had come fairly close to winning Arizona in the 2012 election. In his re-election bid, he was able to gain a larger share of the vote in the Democratic stronghold of Pima County as well as most of northern Arizona. He also increased his support in Maricopa County, although it was again carried by the Republican presidential candidate. Rutherford's statewide margin of victory was 198,134 votes out of 2,573,165 cast. Third-party candidates, from the Green, Libertarian, and Constitution Parties, as well as various independent and write-in candidates, earned 2.76% of the popular vote. This was the first time since 1984 that a Democratic presidential candidate won the state.