user: Question: If the district is Virginia 8, who is the Incumbent?
Columns: ['District', 'Incumbent', 'Party', 'First elected', 'Result', 'Candidates']
Types: ['text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Virginia 1', 'Robert Rutherford', 'Democratic-Republican', 1793.0, 'Lost re-election Federalist gain', 'Daniel Morgan (F) Robert Rutherford (DR)']
SQL:

assistant: SELECT "Incumbent" FROM "Table" WHERE "District" = 'Virginia 8';