Here's the real reason Martha McSally conceded the Arizona Senate race before all the votes were counted  CNNArizona Election Results: 6 Key Takeaways on Sinema Victory  New York TimesElections roundup: Sinema wins in Arizona, but Florida and Georgia races still too close to call  USA TODAYMartha McSally's dog is the leader America needs  Washington PostMeet Kyrsten Sinema, the Democrat who was just elected Arizona's first female senator  ABC NewsFull coverage