My apologies, I didn't realize that I was speaking with someeone that thought Congress selects the president and appoints the Supreme Court. In your world, a super majority would be more important. My mistake.
They could pass Constitutional Amendments (and with a similar majority among the states, pass them within weeks).
Justices could be easily removed ~
This was early recognized by the folks who demanded a Bill of Rights ~ to protect individuals against the federal government.
There's really nothing new in what i said ~ just that you imagined there's something more important (in terms of organizing a government) than a Super Majority, and there isn't.
I'd much rather have a top to bottom Republican supermajority than simply another run of the mill, mealy mouthed, reach around President.