Original sentence: Kasten ran for the United States Senate in 1980, defeating liberal Democrat incumbent Senator Gaylord Nelson.Kasten was defeated by Democrat Russell Feingold, in 1992
Edited sentence: Kasten ran for the United States Senate in 1980, defeating liberal Democratic incumbent Senator Gaylord Nelson on the coattails of Ronald Reagan.Kasten was defeated by Russell Feingold, who ran a clever campaign in the Democratic year of 1992