The Latest: Polls close in Arizona

PHOENIX (AP) — The Latest on Arizona's midterm election (all times local):7 p.m.

Polls have closed in Arizona.

Election officials forecast turnabout of about 60 percent.

That's a sign of unusually high interest in the midterm election. The top race in the state is the neck-and-neck U.S. Senate race between Republican Rep. Martha McSally and Democratic Rep. Kyrsten Sinema.

Republican Gov. Doug Ducey is also up for re-election. His challenger is Democratic education professor David Garcia. Statewide officers from attorney general to corporation commissioner are also on the ballot.

A GOP-backed measure would allow the expansion of a school voucher program. A Democratic-backed one would increase the state's renewable energy standards.