Table: election_results_2006_4
Columns: district
incumbent
party
first_elected
results
candidates

Question: Who is the incumbent in the Washington 1 district? 
SQL: SELECT "incumbent" FROM election_results_2006_4 WHERE "district" = 'Washington 1'

Question: How many categories of first elected are in Washington 4 district? 
SQL: SELECT COUNT("first_elected") FROM election_results_2006_4 WHERE "district" = 'Washington 4'

Question: What was the result in the election where the date of first elected was 2000? 
SQL: SELECT "results" FROM election_results_2006_4 WHERE "first_elected" = 2000