Only one issue appeared to mar the otherwise calm Election Day. Apache County, located along the state's north and eastern borders with Utah, Colorado and New Mexico, experienced problems with its electronic pollbooks and printers on Tuesday morning. That led to long lines and concerns from tribal officials.

Latino community groups in metro Phoenix spent Election Day knocking on doors, hoping to boost turnout among Arizona’s Latino voters, who make up nearly one in four voters in the state. Their numbers could make significant impacts in some of the tightest races in the state,