1998 Iowa U.S. Senate Election

Iowa · 4 candidates

Charles E. GrassleyRepublicanWINNER68.41%

648,480 votes

David OsterbergDemocratic30.49%

289,049 votes

Susan MarcusNatural Law0.8%

7,561 votes

Margaret TroweSocialist Workers0.27%

2,542 votes

Popular-vote totals for U.S. Senate elections come from the MIT Election Data and Science Lab (1976–2024).