CREATE TABLE table_201_10 (id DECIMAL, "#" DECIMAL, "name" TEXT, "office" TEXT, "political party" TEXT, "occupation" TEXT)

which political party has had the most elected mayors ?
SELECT "political party" FROM table_201_10 GROUP BY "political party" ORDER BY COUNT("name") DESC LIMIT 1
SELECT "political party" FROM "table_201_10" GROUP BY "political party" ORDER BY COUNT("name") DESC NULLS LAST LIMIT 1