The Constitution specifies that the House and Senate make their own rules via a simple majority vote.
The Senate set a rule that they would require a vote to end (previously unlimited) debate and hold a vote on an issue. Originally, this required a two thirds majority, which was lowered to 60 votes later.
More recently, the Senate changed the rules again to only require a simple majority vote on some matters.
Nothing about the Filibuster rule was ever specified in the Constitution.
Thank you for writing that out, having a tangible example definitely provides more clarity to other readers.
I do want to push back though a bit. The filibuster isn’t the only rule I was referring to, and the entirety of the constitutions specification of the rule making process is literally “Each House may determine the rules of its proceedings”. So when I say rule making broadly has nothing to do with the constitution, it’s because it quite literally doesn’t.
It would help to be a bit clearer.
The Constitution specifies that the House and Senate make their own rules via a simple majority vote.
The Senate set a rule that they would require a vote to end (previously unlimited) debate and hold a vote on an issue. Originally, this required a two thirds majority, which was lowered to 60 votes later.
More recently, the Senate changed the rules again to only require a simple majority vote on some matters.
Nothing about the Filibuster rule was ever specified in the Constitution.