Tuesday’s Arizona GOP primary will determine the party’s candidate for governor. Five Republicans are in the running. Rep. Andy Biggs runs again this year. Trump-backed candidates stand against him. The election fight in 2020 is the central issue. Some Republican leaders continue to doubt the vote counts. Polls closed at 9 p.m. local time. Latino voters could shift the race. Experts predict a close finish. No single leader led going into the vote.