CREATE TABLE table_25070 ("State  ( class ) " TEXT, "Vacator" TEXT, "Reason for change" TEXT, "Successor" TEXT, "Date of successors formal installation" TEXT)

Who was the successor for the state of Maine (2) ?
SELECT "Successor" FROM table_25070 WHERE "State (class)" = 'Maine (2)'
SELECT "Successor" FROM "table_25070" WHERE "State (class)" = 'Maine (2)'