CREATE TABLE table_18182 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

how many party with district being washington 7
SELECT COUNT("Party") FROM table_18182 WHERE "District" = 'Washington 7'
SELECT COUNT("Party") FROM "table_18182" WHERE "District" = 'Washington 7'