McSally won the August 28 Republican primary with 53 percent of the vote and faced Democratic nominee Kyrsten Sinema in the November general election. The general election remained undecided for several days after election night until all ballots were counted in the close contest. McSally held a lead by the end of election night, but it narrowed over the next few days as more ballots were counted. During this time, both McSally and Sinema voiced support for counting all the ballots. There was no evidence of any fraud. On November 12, McSally conceded to Sinema, congratulating her on becoming Arizona's first female Senator. Sinema won by almost 56,000 votes.