The 2006 Sioux Falls mayoral election took place on April 25, 2006, following a primary election on April 11, 2006. Incumbent Mayor Dave Munson announced on February 2, 2006, that he would not seek re-election following a campaign finance controversy. Accordingly, a crowded race formed to succeed him. However, Munson changed his mind and announced he would seek a second term on March 16. Munson placed first in the primary, winning 28 percent of the vote. He advanced to the general election with Bruce Halverson, the President of Augustana College. Munson narrowly defeated Halverson, 52âÂÂ48 percent, a margin of 891 votes, to win his second and final term as mayor.