Who is the Incumbent that has a District of ohio 13 in Democratic Party?
CREATE TABLE table_name_3 (incumbent VARCHAR, district VARCHAR)
SELECT incumbent FROM table_name_3 WHERE district = "ohio 13"
### Context: CREATE TABLE table_name_3 (incumbent VARCHAR, district VARCHAR) ### Question: Who is the Incumbent that has a District of ohio 13 in Democratic Party? ### Answer: SELECT incumbent FROM table_name_3 WHERE district = "ohio 13"