user: Question: What is the party of the district incumbent Jim Saxton?
Columns: ['District', 'Incumbent', 'Party', 'First elected', 'Results', 'Candidates']
Types: ['text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['New Jersey 1', 'Rob Andrews', 'Democratic', 1990.0, 'Re-elected', 'Rob Andrews (D) 74% Ronald Richards (R) 23%']
SQL:

assistant: SELECT "Party" FROM "Table" WHERE "Incumbent" = 'Jim Saxton';