Percy was opposed by Democratic nominee Roman Pucinski , a United States Congressman from Illinois 's 11th congressional district , whom he was able to defeat handily to win a second term .
Incumbent Republican United States Senator Charles H. Percy sought re-election to the United States Senate .
Senator was opposed by Democratic nominee Roman Pucinski , a United States Congressman from Illinois 's 11th congressional district , whom Charles H. Percy was able to defeat handily to win a second term .
Incumbent Republican United States Senator Charles H. Percy sought re-election to the United States Senate .