user: Question: Who was the republican when hillary clinton was the democrat and the sample size was more than 1087 with a margin of error of 2.6?
Columns: ['Poll Source', 'Sample Size', 'Margin of Error', 'Date', 'Democrat', 'Republican']
Types: ['text', 'real', 'real', 'text', 'text', 'text']
Sample row: ['Quinnipiac', 1697.0, 2.4, 'Mar 19-24, 2008', 'Hillary Clinton', 'John McCain']
SQL:

assistant: SELECT "Republican" FROM "Table" WHERE "Sample Size" > 1087.0 AND "Democrat" = 'hillary clinton' AND "Margin of Error" = 2.6;