What district did Dave Treen serve?
CREATE TABLE table_1341663_19 (district VARCHAR, incumbent VARCHAR)
SELECT district FROM table_1341663_19 WHERE incumbent = "Dave Treen"
### Context: CREATE TABLE table_1341663_19 (district VARCHAR, incumbent VARCHAR) ### Question: What district did Dave Treen serve? ### Answer: SELECT district FROM table_1341663_19 WHERE incumbent = "Dave Treen"