Prior to entering politics, Sommer worked for her family business, Sunset Maintenance Company. She now helps run her husband's CPA firm, Sommer & Associates CPAs LLC and manage a commercial multi-tenant building. She and husband Michael Sommer are the parents of two children. In April 2011,
Sally Faith, the incumbent state representative, won election as mayor of
St. Charles, Missouri and resigned from her House seat. Missouri Governor
Jay Nixon then called for a special election to fill the remainder of Faiths' term. Chrissy Sommer had been previously involved in local Republican politics, serving in the St. Charles County Republican Central Committee. She was selected by Committee members of the 15th District from three potential Republican candidates to face Democrat Paul Woody and Libertarian Bill Slantz. In a very close election held on November 8, 2011, Sommer defeated Woody by only 38 votes. Due to the small margin, Woody asked for a recount and Sommer was declared the winner in a recount conducted on Decemberc 14, 2011. The Missouri Secretary of State's office certified that the recount gave Sommer an additional two votes over Democrat Paul Woody for a total of forty votes difference. After the 2010 U.S. Census, all of Missouri's House and Senate districts were redrawn. Effective January 2013 Sommer's home of record will be in the 106th district, which she again ran for and won in the 2014 midterm. ==Elections==