> If I were a writer, I would interview our president, Moon Jaein.Because he is our country's president and I want to know about his life as a president.
---------------------------------------------------------
* Correction : Student's sentence Corrected sentence Grammar explanation Better sentence
If I were a writer, I would interview our president, Moon Jaein.Because he is our country's president and I want to know about his life as a president.
If I were a writer, I would interview our president, Moon Jaein because he is our country's president and I want to know about his life as a president.
There is no need to separate your clauses with because. Because is a subordinating conjunction, which means that it connects a subordinate clause to an independent clause.