Nothing in the US Constitution mentions supermajority requirements except for (1) the passage of new Amendments and (2) impeachment of the POTUS.
And the history of the evolution of the filibuster rule in the Senate evolved from 1892 when the SCOTUS ruled that the Senate may therefore change its rules anytime it wants to by a simple majority.
Should the GOP now therefore change their current Senate rule that 60 votes are required in the Senate to stop a filibuster ("invoke cloture")?
The GOP wants to seat new SCOTUS justices, and the GOP wants to repeal ACA. And neither will be possible with Schumer able to filibuster together with his partisan Senators. Without changing the Senate rules the GOP cannot do either.
Filibuster in the United States Senate - Wikipedia
And the history of the evolution of the filibuster rule in the Senate evolved from 1892 when the SCOTUS ruled that the Senate may therefore change its rules anytime it wants to by a simple majority.
Should the GOP now therefore change their current Senate rule that 60 votes are required in the Senate to stop a filibuster ("invoke cloture")?
The GOP wants to seat new SCOTUS justices, and the GOP wants to repeal ACA. And neither will be possible with Schumer able to filibuster together with his partisan Senators. Without changing the Senate rules the GOP cannot do either.
Filibuster in the United States Senate - Wikipedia