Arizona Senate: Flake (R) 50%, Carmona (D) 44% Thursday, October 25, 2012 Republican Congressman Jeff Flake has hit the 50% mark for the first time in the U.S. Senate race in Arizona.

Polls across Arizona will be open from 6 a.m. to 7 p.m. MST. Key races involve Kari Lake running for Senate and a couple of contested House seats.