Kamala Harris and Donald Trump will square off in their first presidential debate on Tuesday. St. Louis has a rich history of hosting such events. Washington University hosted presidential or vice presidential debates in 1992, 2000, 2004, 2008 and 2016. Longtime St. Louis journalist Jo Mannies discusses this history on the Politically Speaking Hour on St. Louis on the Air, and we hear from WashU Chancellor Emeritus Mark Wrighton as well as notable moments from those debates.