Sinema leading
By KTAR.com
U.S. Sen. John McCain (R-Ariz.) is more popular among registered Democrat voters in Arizona than registered voters in his own party.
According to CBS News, a recent poll found that only 20 percent of registered Republican voters in Arizona view McCain favorably, compared to 62 percent of Democrats.
In comparison, only 33 percent of Independent voters in the state viewed McCain favorably.