Timothy Peter Johnson is a retired American lawyer and politician who served as a United States senator from South Dakota from 1997 to 2015. A member of the Democratic Party, he served as the United States representative for South Dakota's at-large congressional district from 1987 to 1997 and in the state legislature from 1979 to 1987. He is the last Democrat to hold statewide and/or congressional office in South Dakota. He and Stephanie Herseth are also the last Democrats to win a statewide and/or federal election in South Dakota.
Marion Michael Rounds is an American businessman and politician serving as the junior United States senator from South Dakota since 2015. A member of the Republican Party, he served as the 31st governor of South Dakota from 2003 to 2011.
Ellis James Abdnor was an American politician who served as a member of the United States Senate from South Dakota. He was also the 15th Administrator of the Small Business Administration under presidents Ronald Reagan and George H. W. Bush.
John Randolph Thune is an American politician serving as the senior United States senator from South Dakota, a seat he has held since 2005. Thune is in his fourth Senate term and is the Senate minority whip, a post he has held since 2021. A member of the Republican Party, Thune served three terms as the U.S. representative for South Dakota's at-large congressional district from 1997 to 2003.
William Lewis Guy was an American politician who was the governor of the U.S. state of North Dakota from 1961 to 1973. Guy was North Dakota's longest-serving governor in state history, serving two consecutive two-year terms and two four-year terms in office.
David Koehler is a Democratic politician from Illinois, and has been the Illinois State Senator from 46th Legislative District since December 2006. The district includes Canton, East Peoria, Fairview, Lewistown, Mapleton, Peoria, Pekin and West Peoria.
The structure of the government of South Dakota is based on that of the federal government, with three branches of government: executive, legislative, and judicial. The structure of the state government is laid out in the Constitution of South Dakota, the highest law in the state. The constitution may be amended either by a majority vote of both houses of the legislature, or by voter initiative.
Douglas Rudy Magnus is an American, Minnesota politician and a former member of the Minnesota Senate, who represented District 22, which includes all of Cottonwood, Jackson, Murray, Nobles, Pipestone and Rock counties in the southwestern part of the state. A Republican, he is also a farmer.
Matthew Michels is an American politician who served from 2011 to 2019 as the 38th lieutenant governor of South Dakota.
Larry Rhoden is an American politician and businessman serving as the 39th lieutenant governor of South Dakota since 2019.
Martin J. Jackley is an American attorney and politician who is currently serving as the Attorney General of South Dakota since 2023, having previously served from 2009 to 2019. He assumed office as Attorney General again in 2023 after winning the 2022 election unopposed. He previously served as the 39th United States Attorney for the District of South Dakota. He ran unsuccessfully for Governor of South Dakota in 2018, losing to Republican primary to Kristi Noem.
Timothy Robert Johns is an American politician and a Republican member of the South Dakota Senate. He previously served as a member of the South Dakota House of Representatives representing District 31 from January 11, 2013 to January 12, 2021.
Brock L. Greenfield is an American politician serving as School and Public Lands Commissioner of South Dakota. He previously served as a Republican member of the South Dakota Senate. Greenfield was consecutively a member of the House for District 6 from January 2009 until January 11, 2013, and a member of the South Dakota Senate for District 6 from January 2001 until January 2009. Greenfield has represented District 2 since January 10, 2015.
Justin R. Cronin was an American politician who served as a Republican member of the South Dakota House of Representatives from January 2009 to 2017 and the South Dakota State Senate from 2017 until his resignation in August 2019 due to health reasons. Cronin won his uncontested seat for an additional term in 2016. He died at his home in Pierre, South Dakota at the age of 40.
Phil Jensen, is an American politician from Pennington County, South Dakota who is a current member of the South Dakota House of Representatives and has served as a Republican member of the South Dakota Senate representing District 33 from 2013 to 2021. Jensen served consecutively in the South Dakota Legislature from January 2009 until January 8, 2013 in the South Dakota House of Representatives District 33 seat. He supplements his legislative income as a cookware dealer.
Jean M. Hunhoff is an American politician and a Republican member of the South Dakota Senate since 2021. She has also served in the South Dakota House of Representatives representing District 18 from 2001 to 2007 and again from 2015 to 2021. She previously served in the South Dakota Senate from 2007 to 2015. Hunhoff was the mayor of Yankton from 1995 until 1997.
Guy Lorin Reschenthaler is an American politician, attorney, judge, and U.S. Navy veteran. A Republican, he is the U.S. representative for Pennsylvania's 14th congressional district and was previously a member of the Pennsylvania State Senate, representing the 37th district. He served as a district judge and in the U.S. Navy Judge Advocate General's Corps (JAG) during the Iraq War. He is serving as the Republican Chief Deputy Whip in the 118th Congress.
Jordan Youngberg is an American politician and businessman who represented District 8 in the South Dakota Senate from 2017 to 2020. In June 2020, Youngberg resigned from the Senate to work for the South Dakota State Treasurer.
Thomas Beadle is an American politician from the state of North Dakota. A Republican, he is the North Dakota State Treasurer. Beadle was previously a member of the North Dakota House of Representatives.
Casey Crabtree is an American politician serving as a member of the South Dakota Senate from the 8th district. Crabtree was appointed to office by Governor Kristi Noem on June 19, 2020, succeeding Jordan Youngberg, who resigned to serve with the South Dakota State Treasurer.
