Write SQL query to solve given problem: What party does the area with the zip code 91701 belong to?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T1.party FROM congress AS T1 INNER JOIN state AS T2 ON T1.abbreviation = T2.abbreviation INNER JOIN zip_data AS T3 ON T2.abbreviation = T3.state WHERE T3.zip_code = 91701 GROUP BY T1.party