Robert Onder Jr. is an American politician and physician from the state of Missouri. A Republican, he is a member of the Missouri Senate serving the 2nd District, in the St. Charles area. He was elected Assistant Majority Floor Leader in 2015. Onder previously was a member of the Missouri House of Representatives from 2007 to 2008. https://www.facebook.com/bobondermo/ https://twitter.com/BobOnderMO https://www.bobondermo.com/