This is the 1079th most frequent Korean word.
한덕수
"한덕수" is a Korean proper noun, typically used as a person's name.
In this sentence, the name '한덕수' functions as a proper noun referring to an individual who is identified as a politician.
한덕수는 한국의 정치인입니다.
Han Duck-soo is a politician of South Korea.
Here, '한덕수' again functions as a proper noun, referring to the specific person seen on the news.
저는 어제 한덕수를 뉴스에서 봤어요.
I saw Han Duck-soo on the news yesterday.
In this sentence, '한덕수' is used to identify the person about whom someone might want to learn more (proper noun).