user: Question: When was the earliest incumbent Dave Reichert was first elected?
Columns: ['District', 'Incumbent', 'Party', 'First elected', 'Results']
Types: ['text', 'text', 'text', 'real', 'text']
Sample row: ['Washington 1', 'Jay Inslee', 'Democratic', 1998.0, 'Re-elected']
SQL:

assistant: SELECT MIN("First elected") FROM "Table" WHERE "Incumbent" = 'Dave Reichert';