Question: How many incumbents are there in district Louisiana 5?
SQL: SELECT COUNT("Incumbent") FROM "1-1341690-18" WHERE "District" = 'Louisiana 5';

Question: How many incumbents resulted in a Lost renomination Republican gain?
SQL: SELECT COUNT("Incumbent") FROM "1-1341690-18" WHERE "Result" = 'Lost renomination Republican gain';

Question: In which district is the incumbent John Breaux?
SQL: SELECT "District" FROM "1-1341690-18" WHERE "Incumbent" = 'John Breaux';

Question: What year was Otto Passman (D) Unopposed first elected?
SQL: SELECT MAX("First elected") FROM "1-1341690-18" WHERE "Candidates" = 'Otto Passman (D) Unopposed';

Question: What were the results when the incumbent was John Breaux?
SQL: SELECT "Result" FROM "1-1341690-18" WHERE "Incumbent" = 'John Breaux';