user: Question: What year was Luis Gutierrez election
Columns: ['District', 'Incumbent', 'Party', 'First elected', 'Results', 'Candidates']
Types: ['text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Illinois 2', 'Jesse L. Jackson Jr.', 'Democratic', 1995.0, 'Re-elected', 'Jesse L. Jackson Jr. (D) 90% Robert Gordon (R) 10%']
SQL:

assistant: SELECT "First elected" FROM "Table" WHERE "Incumbent" = 'Luis Gutierrez';