Schupp's political career began in 2000 as a member of the
Ladue School Board, where she served for six years including two terms as President. In 2007, she was elected to the
Creve Coeur City Council.
Missouri House of Representatives Schupp was an elected member of the Missouri House of Representatives from 2008 to 2014, where she served on the Joint Committee on Life Sciences, Budget Committee, Health Insurance Committee, Higher Education Committee, and the Children, Families, and Persons with Disabilities Committee.
Missouri Senate In 2014, Schupp was elected to the Missouri Senate. After running unopposed in the Democratic primary, she defeated Republican
Jay Ashcroft and Libertarian Jim Higgins with 50% of the vote against 47% and 3% respectively. After raising over $1 million for her reelection bid, she was re-elected to the senate 2018, defeating Republican Gregory Powers. Schupp represents the 24th Senate district, which is located in St. Louis County. Her state senate district covers much of the St. Louis County portion of the congressional district. She did not have to give up her state senate seat to run for Congress; her term in the state senate wasn't due to expire until 2023 (at which time she will be
termed out of the chamber). She won the Democratic primary unopposed, but she lost to Wagner by 6.4 percentage points. ==Electoral history==