What political term describes a long speech given to delay legislative action?

In the realm of politics, a long speech intended to delay legislative action is known as a filibuster. This parliamentary procedure is primarily utilized in the United States Senate, where rules traditionally permit senators to speak for an unlimited duration on any topic they choose. The goal of such prolonged debate is to obstruct or entirely prevent a vote on a bill, resolution, or other debatable question, essentially "talking a bill to death."

The term "filibuster" itself has an interesting origin, deriving from the Dutch word "vrijbuiter," meaning "freebooter," and the Spanish "filibusteros," used to describe pirates raiding Caribbean islands. It began appearing in American legislative debates in the 1850s. While the practice of unlimited debate existed from the early days of the Senate, it became a strategic tactic after an 1806 rule change inadvertently removed a way to end debate, giving senators the right to speak indefinitely. To counter this, the Senate adopted Rule XXII in 1917, introducing a mechanism called "cloture," which allows for debate to be limited and a vote to proceed if a supermajority of senators, typically 60, agree.

Historically, the filibuster has been a powerful tool for the minority party to block legislation, including significant instances where it was used to obstruct civil rights bills. Proponents argue it encourages compromise and protects the interests of minority viewpoints, ensuring more thorough deliberation. Critics, however, contend that it leads to obstructionism and allows a minority to thwart the will of the majority, potentially hindering important legislative progress.