Table:
text: United States House of Representatives elections, 1990
Illinois
Illinois
District Incumbent Party Elected Status_ Opponent
Illinois1 Charles Hayes Democratic 1983 Re-elected Charles Hayes (D) 93.8% Babette Peyton (R) 6.2%
Illinois2 Gus Savage Democratic 1980 Re-elected Gus Savage (D) 78.2% William T. Hespel (R) 21.8%
Illinois3 Marty Russo Democratic 1974 Re-elected Marty Russo (D) 70.9% Carl L. Klein (R) 29.1%
Illinois6 Henry Hyde Republican 1974 Re-elected Henry Hyde (R) 66.7% Robert J. Cassidy (D) 33.3%
Illinois7 Cardiss Collins Democratic 1973 Re-elected Cardiss Collins (D) 79.9% Michael Dooley (R) 20.1%
Illinois9 Sidney R. Yates Democratic 1964 Re-elected Sidney R. Yates (D) 71.2% Herb Sohn (R) 28.8%

Question: In the 1990 Illinois United States House of Representatives election, which district had elections in 1964?

Question: Who was Henry Hyde's opponent in the 1990 United States House of Representatives race in Illinois?