Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_15929156_3 (mccain__percentage VARCHAR, county VARCHAR)
### Question:
Name the mccain % for dukes
### Answer:
SELECT mccain__percentage FROM table_15929156_3 WHERE county = "Dukes"