what does the senate guard do against a filibuster?

The Senate guard, often referred to as the presiding officer or the Sergeant at Arms, plays a limited role in addressing a filibuster. The presiding officer can call for a vote to end the filibuster through a motion for cloture, which requires a supermajority (currently 60 votes) to pass. If cloture is invoked, the Senate can then proceed to a final vote on the legislation or nomination being filibustered. Ultimately, however, it is the senators themselves who must work to gather the necessary support to overcome the filibuster.