Chasidut על אסתר 3:1

Amalek: An ancient nation that sought to destroy the Jews (see Exod. 16:8-16). They attacked the weakest members of Israel, the elderly and infirm, before the Jewish nation arrived at Sinai to receive the Torah. Haman was a member of this nation (see Esth. 3:1), and he tried to annihilate world Jewry during the reign of Achashveirosh.