Prior to his term as Treasurer , he served as a Republican member of the Illinois Senate , representing the 53rd district , from 2003 to 2011 , and in the Illinois House of Representatives from 1993 to 2003 .
He served as a Republican member of the Illinois Senate , representing the 53rd district , from 2003 to 2011 , in the Illinois House of Representatives from 1993 to 2003 , and as the Treasurer of Illinois from 2011 to 2015 .