The runner-up for the position suggested the influx of staunchly conservative Republicans from the Nov. 2 election contributed to the loss of support for him.
Rep. Mike Talboy was elected Thursday night. He said his main priority will be a new jobs package.
How did your precinct vote? Use our interactive graphic to see results in every precinct in Boone County in local and statewide races.
Here are the results for all races on the ballot in Columbia.
As the polls closed for election night, voters across the state gathered with their favored candidates to watch results come in. Missourian photographers captured the highs and lows of the candidates' watch parties.
Incomplete returns showed the GOP picked up at least 57 House seats — the biggest party turnover in more than 70 years — and led for eight more, far in excess of what they needed for a majority.
Republican Congressman Roy Blunt declared victory over Democratic Secretary of State Robin Carnahan in the race for Missouri's open U.S. Senate seat. The win followed a trend of Republican wins across the state and nationwide.
Citizens and police can continue using Tasers in Columbia after Proposition 2 was roundly defeated. The group People for a Taser-Free Columbia planned to issue a statement Wednesday.
Figures from the secretary of state's office show more than 1.9 million people voted Tuesday.
John Cauthorn, Stephen Webber, Chris Kelly, Paul Quinn, and Mary Still were elected to the General Assembly.
With the defeat of Proposition 2, Columbia police will continue to use Tasers. Meanwhile, People for a Taser-Free Columbia plan their next course of action.
New rules for dog breeders in Missouri, strongly supported by the Humane Society of the United States, were approved by the smallest of margins in Tuesday's election. Breeders have one year to come into compliance with the new regulations.
Three amendments to the state constitution passed in Tuesday's elections. Some experts said they would be better suited as statutes.
State Republican leaders said their party's recent victory is a sign that Missourians are demanding a government that is fiscally responsible. State Democratic leaders chalked up their party's loss to a national trend of frustration with the federal government.
Dog breeders have one year to meet the new regulations.
Both measures received more than 50 percent of the votes.
All three amendments to the state constitution passed, including a measure that prohibits the state from implementing a real estate transfer tax.
Republican Ed Robb campaigned on a platform of reducing the salaries of Boone County's elected officials.
Proposition A requires voters in the state's two large cities to approve existing earnings taxes every five years. The measure has statewide ramifications by also barring other Missouri cities from imposing their own earnings tax.
With incoming House Speaker Rep. John Boehner and President Barack Obama there is a greater need for the two parties to work together.