user: Question: Which district had Paul B. Dague as the incumbent?
Columns: ['District', 'Incumbent', 'Party', 'First elected', 'Result', 'Candidates']
Types: ['text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Pennsylvania 3', 'Hardie Scott', 'Republican', 1946.0, 'Retired Democratic gain', 'James A. Byrne (D) 58.4% Morton Witkin (R) 41.6%']
SQL:

assistant: SELECT "District" FROM "Table" WHERE "Incumbent" = 'Paul B. Dague';