“I don’t understand it,” said McCain on CBS’s “Face the Nation.” “The purpose of the United States Senate is to debate and to vote and to let the people know where we stand.”

“What are we afraid of? Why would we not want… if this issue is as important as all of us think it is, why not take it to one of the world’s greatest deliberative bodies – that’s one of the greatest exaggerations in history by the way – but you know why not take it up, an amendment and debate. The American people will profit from it,” said the Arizona senator.

“I don’t understand why United States senators want to block debate when the leaders said we could have amendments,” McCain added.