user: Question: What is the First Elected date of the Republican with Results of Retired Republican hold?
Columns: ['District', 'Incumbent', 'Party', 'First elected', 'Results']
Types: ['text', 'text', 'text', 'real', 'text']
Sample row: ['Illinois 1', 'Bobby Rush', 'Democratic', 1992.0, 'Re-elected']
SQL:

assistant: SELECT "First elected" FROM "Table" WHERE "Party" = 'Republican' AND "Results" = 'Retired Republican hold';