CREATE TABLE table_18634 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

what's the party with incumbent being john sparkman
SELECT "Party" FROM table_18634 WHERE "Incumbent" = 'John Sparkman'
SELECT "Party" FROM "table_18634" WHERE "Incumbent" = 'John Sparkman'