"Keep Grassley in Congress". Chuck Grassley took office in January of 1981 and remains to be a US Senator from Iowa today (10/20/15). A student of UNI when it was still Iowa State Teachers College, he received both his Masters and Bachelors degrees from here. This bumper sticker is in support of Grassley as a Representative of Iowa's 3rd district. Grassley was a member from 1975-1981.