CREATE TABLE table_137 ("1921" TEXT, "party" TEXT, "Manhattan" TEXT, "The Bronx" TEXT, "Brooklyn" TEXT, "Queens" TEXT, "Richmond [Staten Is.]" TEXT, "Total" FLOAT, "%" TEXT)

How many votes in Brooklyn were won by the candidate who won 321 votes in Manhattan?
SELECT "Brooklyn" FROM table_137 WHERE "Manhattan" = '321'
SELECT "Brooklyn" FROM "table_137" WHERE "Manhattan" = '321'