I think Barack Obama is a good person of a global citizen.

He served as 44th president of United States from 2009 to 2017.
He was the first African-American president in U.S. history. Until this day, African did not know he could be president in America. But when he became a president, he made that various people’s thinking were changed! In 1992, he became a city rights attorney and an academic about  teaching law to students. Obama also pressed for a fair pay act for woman and protected consumers.
So I think he affect a lot of people.
Now he has many occupations: Politician, lawyer, and author.

As a result, many countries got closer each other by him.

That’s the reason I chose him.