Table:
text: United States House of Representatives elections, 1990
Washington
Washington
District Incumbent Party Elected Status_ Opponent
Washington1 John Miller Republican 1984 Re-elected John Miller (R) 52.0% Cynthia Sullivan (D) 48.0%
Washington3 Jolene Unsoeld Democratic 1988 Re-elected Jolene Unsoeld (D) 53.8% Robert Williams (R) 46.2%
Washington4 Sid Morrison Republican 1980 Re-elected Sid Morrison (R) 70.7% Ole H. Hougen (D) 29.3%
Washington5 Tom Foley Democratic 1964 Re-elected Tom Foley (D) 68.8% Marlyn Derby (R) 31.2%
Washington6 Norman D. Dicks Democratic 1976 Re-elected Norman D. Dicks (D) 61.4% Norman Mueller (R) 38.6%

Question: How many parties does Tom Foley belong to in the 1990s United States House of Representatives election in Washington?

Question: What was the result of the 1990 United States House of Representatives elections in the district incumbent on Tom Foley under Washington?