Table:
text: United States House of Representatives elections, 1988
Illinois
Illinois
District Incumbent Party First_elected Result_ Candidates
Illinois 1 Charles Hayes Democratic 1983 Re-elected Charles Hayes (D) 96.0% Stephen J. Evans (R) 4.0%
Illinois 2 Gus Savage Democratic 1980 Re-elected Gus Savage (D) 82.7% William T. Hespel (R) 17.3%
Illinois 3 Marty Russo Democratic 1974 Re-elected Marty Russo (D) 62.2% Joseph J. McCarthy (R) 37.8%
Illinois 6 Henry Hyde Republican 1974 Re-elected Henry Hyde (R) 73.7% William J. Andrle (D) 26.3%
Illinois 7 Cardiss Collins Democratic 1973 Re-elected Cardiss Collins (D) Unopposed
Illinois 12 Phil Crane Republican 1969 Re-elected Phil Crane (R) 75.2% John A. Leonardi (D) 24.8%
Illinois 17 Lane Evans Democratic 1982 Re-elected Lane Evans (D) 64.9% William E. Stewart (R) 35.1%

Question: Which party does Cardiss Collins belong to in the 1988 United States House of Representatives election in Illinois?