Why did the United States make black Obama president?

America discriminates against blacks because whites generally believe that blacks lack the intelligence and ability to implement democracy and participate in national construction. Nowadays, more and more blacks have obtained higher education and demonstrated their talents in all aspects. Although Obama is black, he has received an all-round American education, and has the mainstream elite consciousness instilled by the white upper class. Coupled with his good eloquence and his unique personal charm, he won the voters and was elected president of the United States.