Question: What is the latest first elected?
SQL: SELECT MAX("First elected") FROM "1-2668405-17";

Question: How many times were the candidates Leven Powell (F) 63.8% Roger West (DR) 36.4%?
SQL: SELECT COUNT("First elected") FROM "1-2668405-17" WHERE "Candidates" = 'Leven Powell (F) 63.8% Roger West (DR) 36.4%';

Question: What is the district with the candidates Leven Powell (F) 63.8% Roger West (DR) 36.4%?
SQL: SELECT "District" FROM "1-2668405-17" WHERE "Candidates" = 'Leven Powell (F) 63.8% Roger West (DR) 36.4%';

Question: What is the district with the incumbent John Nicholas?
SQL: SELECT "District" FROM "1-2668405-17" WHERE "Incumbent" = 'John Nicholas';

Question: How many were in district Virginia 6?
SQL: SELECT COUNT("Candidates") FROM "1-2668405-17" WHERE "District" = 'Virginia 6';