user: Question: What percentage of the votes in Copiah did McCain get?
Columns: ['County', 'Obama%', 'Obama#', 'McCain%', 'McCain#']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Adams', '59.01%', 7630.0, '40.99%', 5300.0]
SQL:

assistant: SELECT "McCain%" FROM "Table" WHERE "County" = 'Copiah';