"There is no Senate rule governing the proper uses of the filibuster"

This quote by Tony Snow is describing making use of the filibuster in the United States Senate. The filibuster is a tactic utilized by senators to postpone or prevent a vote on an expense or other legislative action. It is a powerful tool that can be used to obstruct legislation that a senator or group of senators oppose. Snow's quote is saying that there is no specific rule in the Senate that governs how the filibuster can be utilized. This indicates that senators have a lot of liberty in how they use the filibuster, and it can be utilized for a variety of purposes. This quote highlights the significance of the filibuster in the Senate and how it can be utilized to affect the legislative process.