Who's the incumbent of Indiana 4 district?
CREATE TABLE table_1341843_15 (incumbent VARCHAR, district VARCHAR)
SELECT incumbent FROM table_1341843_15 WHERE district = "Indiana 4"
### Context: CREATE TABLE table_1341843_15 (incumbent VARCHAR, district VARCHAR) ### Question: Who's the incumbent of Indiana 4 district? ### Answer: SELECT incumbent FROM table_1341843_15 WHERE district = "Indiana 4"