Missouri voters are casting ballots to settle several contentious election battles.
The polls are open in Missouri from 6 a.m. to 7 p.m. You can read about the issues in our voters guide.
The most closely watched state race has been for the U.S. Senate seat being vacated by Republican Kit Bond. Republican U.S. Rep. Roy Blunt and Democratic Secretary of State Robin Carnahan are competing Tuesday to succeed Bond, who served for 24 years.
Democrat Rep. Ike Skelton of Lexington also faces one of the toughest re-election challenges in his 34-year career, from former Republican state lawmaker Vicky Hartzler.
Democratic incumbent Rep. Russ Carnahan of St. Louis is facing a strong challenge from Republican Ed Martin, an attorney with tea party backing.
In Columbia, voters will decide whether to ban Tasers and will extend a park sales tax. More updates will come throughout the day at ColumbiaMissourian.com.