user: Question: which affiliation does Edwin E. Willis affiliate with
Columns: ['District', 'Incumbent', 'Party', 'First elected', 'Result', 'Candidates']
Types: ['text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Louisiana 2', 'Hale Boggs', 'Democratic', 1946.0, 'Re-elected', 'Hale Boggs (D) 91.8% John Patrick Conway (R) 8.2%']
SQL:

assistant: SELECT "Party" FROM "Table" WHERE "Incumbent" = 'Edwin E. Willis';