“The basic problem for John McCain is the same kind of thing that faces a lot of incumbents right now. He’s been there a long time. People are leery of Washington. They don’t like Washington,” said former Republican Rep. Jim Kolbe, who served 18 years alongside McCain in Arizona’s congressional delegation.

“This is a very tough challenge, probably the toughest race that he’s faced since he was first elected,” Kolbe added.
McCain’s path to victory is complicated by the likelihood the GOP ticket will be headed by Donald Trump, who has an overwhelmingly negative rating among Hispanic voters, a powerful and growing electoral bloc in Arizona.

Trump has scheduled three events in Arizona Saturday with an eye on the winner-take-all presidential primary Tuesday. He will campaign with Maricopa County Sheriff Joe Arpaio, whose get-tough approach to illegal immigration has made him a national lightning rod.