Robert Onder Jr. is a husband, father, physician and small businessman 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. He was honored to be a President Trump Delegate from Missouri to the 2016 Republican National Convention and President Trump Alternate Delegate in 2020.