CREATE TABLE table_4231 ("Pick #" FLOAT, "MLS team" TEXT, "Player" TEXT, "Position" TEXT, "Affiliation" TEXT)

how many pick# does the chivas usa mls team have
SELECT MAX("Pick #") FROM table_4231 WHERE "MLS team" = 'Chivas USA'
SELECT MAX("Pick #") FROM "table_4231" WHERE "MLS team" = 'Chivas USA'