With just over 40 percent of precincts left to report early Wednesday morning, former Maricopa County Treasurer David Schweikert and government relations executuve Susan Bitter-Smith were locked in a close race for the Republican nomination in Arizona’s 5th district. Schweikert was leading Bitter-Smith 30.9 percent to 28.1 percent with nearly 58 percent of precincts reporting. As expected, the remaining four candidates running in the 5th district primary appeared well out of contention. The winner will take on freshman Rep. Harry Mitchell (D) in November. The Phoenix-area seat leans Republican, but Mitchell is a longtime elected official from the region who remains popular with many GOP and independent voters.