They would actually need a 2/3 vote to expel McCain. Good luck getting that.
Exactly. In our time we do see the Founders’ blind spot regarding Congress. To them, Congress was the first and most important branch of government, and they had great faith the Congress would act honorably most of the time. Sadly, they could not foresee a time when the concept of honor would become extinct, and when senators would no longer be named by their state legislatures. The government we have today is so far removed from what the Founders intended that it is heartbreaking.