CREATE TABLE table_204_608 (id DECIMAL, "name" TEXT, "elected party" TEXT, "constituency" TEXT, "elected date" TEXT, "military service" TEXT)

which party had the most elected from it , liberal or unionist ?
SELECT "elected party" FROM table_204_608 WHERE "elected party" IN ('liberal', 'unionist') GROUP BY "elected party" ORDER BY COUNT(*) DESC LIMIT 1
SELECT "elected party" FROM "table_204_608" WHERE "elected party" IN ('liberal', 'unionist') GROUP BY "elected party" ORDER BY COUNT(*) DESC NULLS LAST LIMIT 1