A majority in the House is effectively a supermajority. Confederate fifth column McConnell has eroded the senate to where a simple majority is replacing the sixty vote threshold in more and more circumstances, because if they never actually negotiate they won’t be expected to come up with any good ideas which we all know republicans are terminally incapable of doing.
Instead of a supermajority we can more accurately call what the republicans had a stupidmajority or a septicmajority, as you prefer.