From the EV Tribune (actually Paul Giblin's blog at the Trib) -
Arizona Corporation Commission member Jeff Hatch-Miller is dropping out of the crowded Republican primary race for the GOP nomination in Arizona’s 5th Congressional District.
Hatch-Miller told the Tribune he expects to issue a formal statement late today or Friday.
He made the decision after losing two key campaign staff members just as he was preparing to ramp up the campaign. His campaign coordinator died unexpectedly Friday, a day after his speech writer told him she had to cut back her work because of other commitments.
Expect at least one or two more of the erstwhile Republican challengers to drop out before the primary. Even with Hatch-Miller's withdrawal, there are five Reps in the race (counting the 'exploring' Susan Bitter Smith), and some will find that there isn't enough support to go around.