user: Question: What was the date for Colorado?
Columns: ['State', 'Date', 'Yes vote', 'No vote', 'Vote outcome']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['West:', 'West:', 'West:', 'West:', 'West:']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "State" = 'Colorado';