Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_17 (counties_represented VARCHAR, party VARCHAR, committee VARCHAR)

### Question ###
What counties represented have a democratic committee, and a committee of ways and means?

### Accurate SQL ###

SELECT counties_represented FROM table_name_17 WHERE party = "democratic" AND committee = "ways and means"