Current Position: US Representative of MO District 2 since 2003
Affiliation: Republican
District:  eastern portion of the state, primarily consisting of the suburbs south and west of St. Louis, including Arnold, Town and Country, Wildwood, Chesterfield, and Oakville.  
Upcoming Election:

Ann Wagner was the United States Ambassador to Luxembourg from 2005 to 2009. After college, she worked in the private sector and held management positions at Hallmark Cards in Kansas City and Ralston Purina in St. Louis.

Her district, based in St. Louis County, is heavily suburban and the state’s wealthiest. It includes most of St. Louis’s southern and western suburbs as well as some of the northern exurbs in St. Charles County and the northern part of Jefferson County. Before her diplomatic post, Wagner chaired the Missouri Republican Party from 1999 until 2005; she co-chaired the Republican National Committee for four years, starting in 2001.

Robert Frank Onder Jr. (born January 6, 1962) is an American politician and physician from the state of Missouri. He is the member-elect for the United States House of Representatives in Missouri’s 3rd congressional district.

A Republican, he was a member of the Missouri Senate from 2015 to 2023, serving the 2nd District in the St. Charles area. Onder previously was a member of the Missouri House of Representatives from 2007 to 2008.

Current Position: US Representative of MO District 4 since 2023
Affiliation: Republican
District:  west-central Missouri. It stretches from the northern half of Columbia to the southern and eastern suburbs of Kansas City, including a sliver of Kansas City in Cass County and parts of Blue Springs in Jackson County. It also includes the northern portion of Columbia, home to the University of Missouri (but not the university itself).  
Upcoming Election:

Mark Allen Alford Sr.  is a former television news anchor.In 1998, he went to WDAF-TV in Kansas City as an anchor for Fox 4 News and stayed there for 23 years. He announced his resignation on October 8, 2021.

Current Position: US Representative of MO District 6 since 2001
Affiliation: Republican
District:  northern Missouri, stretching across nearly the entire width of the state from Kansas to Illinois. Its largest voting population is centered in the northern portion of the Kansas City metropolitan area and the town of St. Joseph.  
Upcoming Election:

Graves is a general aviation pilot. He owns a Piper PA-11 Cub Special, is restoring a Beech AT-10, and co-owns a North American T-6 Texan and a Vultee BT-13 Valiant. Gould Peterson Municipal Airport is named after his uncle, an aviator, and is on his family’s farm. Graves is a Baptist.

Graves was elected to the Missouri House of Representatives in 1992.[7] After one term, he was elected to the Missouri Senate in 1994 and reelected in 1998.

Source: Wikipedia

Current Position: US Representative of MO District 7 since 2023
Affiliation: Republican
District:   Southwest Missouri. The district includes Springfield, the home of Missouri State University, the Joplin, Missouri, metropolitan area, Missouri’s 5th largest, and the popular tourist destination city of Branson. 
Upcoming Election:

Eric Wayne previously served as the representative for District 133 (Greene County) in the Missouri House of Representatives. A Republican, Burlison was elected to the Missouri House in 2008 and left office at the end of 2016. In 2018, he was elected to the Missouri Senate, representing District 20. He was elected to Congress in 2022.

Burlison was employed at CoxHealth as a software engineer before being promoted to business analyst. He now works for Cerner. Burlison is a member of the Freedom of Road Riders, Missouri Right to Life, National Rifle Association of America, and the Missouri Chamber of Commerce

Current Position:  US Representative of MO District 8 since 2013
Affiliation: Republican
Positions:  Chair, Joint Committee on Taxation; Chair, Ways and Means Committee
District: 30 counties, covering just under 20,000 square miles of southeastern and southern Missouri.
Upcoming Election:

Jason Smith served four full terms and one partial term in the Missouri House of Representatives, serving as the Majority Whip during the 96th Missouri General Assembly and as Speaker Pro Tem during the 97th Missouri General Assembly.

After passing the Missouri Bar in 2004, Smith practiced law at a local law firm in Cuba, Missouri. He also took over his family’s farm, just outside Salem, which has been in Smith’s family for four generations. At this time, he was a co-owner of a dog breeding business which his mother operated.