Sioux City Mayor Bob Scott was reelected with 68 percent of the vote. But a few of Iowa’s municipal races are undecided. Some Iowa cities require winners to get a clear majority — or 50 percent plus one — of the vote. In Iowa’s largest city, Des Moines Mayor Frank Cownie is seeking a fifth term and got 43.5 percent of the vote — just seven-tenths of a percent ahead of Jack Hatch, a former state legislator who unsuccessfully ran for governor in 2014. They will face-off in a run-off in December. A