“But why does a law passed via a simple majority in both Houses and a President signed it into law require a supermajority to undo?”
The RATS had 60 votes to pass SphincterCare, it takes 60 to repeal it.
What section in Article 1 (legislature) of the US Constitution requires a supermajority (60 votes) to repeal a law previously passed and signed by a President?
No they didn't. Do you not remember this guy?
Because he won Kennedy's seat Reed passed the bill through reconciliation. Majority vote only required.
Incorrect on both counts.