How many districts does john j. douglass represent?
CREATE TABLE table_1342379_20 (district VARCHAR, incumbent VARCHAR)
SELECT COUNT(district) FROM table_1342379_20 WHERE incumbent = "John J. Douglass"
### Context: CREATE TABLE table_1342379_20 (district VARCHAR, incumbent VARCHAR) ### Question: How many districts does john j. douglass represent? ### Answer: SELECT COUNT(district) FROM table_1342379_20 WHERE incumbent = "John J. Douglass"