user: Question: What was the year elected in District 15?
Columns: ['District', 'Incumbent', 'Party', 'Elected', 'Status']
Types: ['real', 'text', 'text', 'real', 'text']
Sample row: [1.0, 'Tim Bishop', 'Democrat', 2002.0, 'Running']
SQL:

assistant: SELECT "Elected" FROM "Table" WHERE "District" = 15.0;