Becoming a member of the Diet was Michael's longtime dream.
When I was a college student, I was interning for a city council Diet member. It was a very good experience.
I lost my Diet member badge.
A discussion member talks about all the really important things that need to be discussed for the sake of the country. They are a member of the Diet. The Diet is Japan's version of congress. Diet members discuss really important matters.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.