A sitting member of parliament is a politician who currently holds a seat in the legislative body. Some synonyms for this term include incumbent, current representative, and sitting delegate. These terms are often used interchangeably to refer to elected officials who are actively serving in government positions. Other related terms include sitting senator or congressman, incumbent governor, and current member of parliament. These phrases all denote a person who has been elected to their position and is currently serving the public in a legislative or executive role.