How many districts have the incumbent, Charles Rangel? 
CREATE TABLE table_1805191_33 (district VARCHAR, incumbent VARCHAR)
SELECT COUNT(district) FROM table_1805191_33 WHERE incumbent = "Charles Rangel"
### Context: CREATE TABLE table_1805191_33 (district VARCHAR, incumbent VARCHAR) ### Question: How many districts have the incumbent, Charles Rangel?  ### Answer: SELECT COUNT(district) FROM table_1805191_33 WHERE incumbent = "Charles Rangel"