Voters have elected Des Moines Mayor Frank Cownie to a fifth term as the businessman narrowly defeated developer and former legislator Jack Hatch. Cownie beat Hatch by less than 300 votes out of more than 20,000 cast in Tuesday’s election. The two candidates had gone to a runoff after topping other candidates in the Nov. 5 general election. The election followed an expensive campaign in which the two candidates raised more than $500,000, with both contributing personal loans.