user: Question: What is the lowest First Elected, when Party is "Republican", and when District is "Minnesota 1"?
Columns: ['District', 'Incumbent', 'Party', 'First elected', 'Results']
Types: ['text', 'text', 'text', 'real', 'text']
Sample row: ['Minnesota 1', 'Gil Gutknecht', 'Republican', 1994.0, 'Lost re-election Democratic gain']
SQL:

assistant: SELECT MIN("First elected") FROM "Table" WHERE "Party" = 'Republican' AND "District" = 'Minnesota 1';