Question:  how many party with district being Washington 7
SQL: SELECT COUNT("Party") FROM "1-1341472-49" WHERE "District" = 'Washington 7';

Question: what's the latest first elected year
SQL: SELECT MAX("First elected") FROM "1-1341472-49";

Question: what's the result with district being Washington 7
SQL: SELECT "Result" FROM "1-1341472-49" WHERE "District" = 'Washington 7';

Question: what being the minimum first elected with district being Washington 7
SQL: SELECT MIN("First elected") FROM "1-1341472-49" WHERE "District" = 'Washington 7';