CREATE TABLE table_201_25 (id NUMBER, "party" CLOB, "leader" CLOB, "from" CLOB, "to" CLOB)

which party has had the most leaders ?
SELECT "party" FROM table_201_25 GROUP BY "party" ORDER BY COUNT("leader") DESC LIMIT 1
SELECT "party" FROM "table_201_25" GROUP BY "party" ORDER BY COUNT("leader") DESC FETCH FIRST 1 ROWS ONLY