In the legislature, a filibuster is one who

In a legislature, a filibuster is a member who prevents the passage of a bill by making long speeches. The intent of a filibuster is to delay or prevent the passage of a bill by speaking for as long as possible, often using delaying tactics or introducing irrelevant topics to consume time. The goal of a filibuster is to stall or block legislation that the filibustering member disagrees with, or to force a compromise on a particular issue. The use of filibusters varies widely between different parliamentary systems and countries.