Who were the candidates in the district whose incumbent is Joe Waggonner?
CREATE TABLE table_1341843_19 (candidates VARCHAR, incumbent VARCHAR)
SELECT candidates FROM table_1341843_19 WHERE incumbent = "Joe Waggonner"
### Context: CREATE TABLE table_1341843_19 (candidates VARCHAR, incumbent VARCHAR) ### Question: Who were the candidates in the district whose incumbent is Joe Waggonner? ### Answer: SELECT candidates FROM table_1341843_19 WHERE incumbent = "Joe Waggonner"