congressist
/kənˈɡrɛsɪst/Definitions
1. noun
A member of a congress; especially, a member of the United States Congress.
“She was elected as a congressist to represent her state in the Senate.”
2. noun
A person who participates in a congress or assembly, especially a gathering of representatives from different regions or countries.
“The congressist from Europe presented a proposal to the assembly.”