Fiorello LaGuardia; *A Republican Socialist. *An Episcopalian, born to Catholic and Jewish parents. *A decorated aviator in WWI. *Addressed political rallies in English, Italian and Yiddish. *Fought corruption instead of embracing it. *Pro-labor, pro-immigration, pro-democracy, anti-mafia, anti-Nazi. *He reached across barriers instead of demonizing opponents. LaGuardia is considered by historians the greatest mayor any American city ever had.