As I recall, the House passed a bill. The Senate then passed their own bill. They had to force it through the House as is because they couldn’t go back to the Senate (since Brown had replace Kennedy) if it was modified ... and they also couldn’t get the House version through the Senate.
My recollection is that the inability to go back to the Senate resulted in the original Senate bill being passed by the House. If it originated in the House ... why did the House have to pass it again?
SnakeDoc
Simple. While it was actually a House bill, it had been amended (by 100%). So, the House had to pass it again...as amended.