user: Question: What is the date for the race that has a circuit of Milwaukee Mile and the sanctioning of CART?
Columns: ['Sanctioning', 'Race Name', 'Circuit', 'City/Location', 'Date']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Joint CART/USAC (CRL)', 'Datsun Twin 200', 'Ontario Motor Speedway', 'Ontario, California', 'April 13']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Circuit" = 'Milwaukee Mile' AND "Sanctioning" = 'CART';