CREATE TABLE table_25424 ("District" CLOB, "Vacator" CLOB, "Reason for change" CLOB, "Successor" CLOB, "Date successor seated" CLOB)

Who is the successor for massachusetts 8th?
SELECT "Successor" FROM table_25424 WHERE "District" = 'Massachusetts 8th'
SELECT "Successor" FROM "table_25424" WHERE "District" = 'Massachusetts 8th'