Rand Paul: “Why go in and the American people -- remember, the president can't even get Democrats on board with this thing. He can't…”

I think there's another legal question that the courts may have to decide upon, and that is whether or not a presidential pardon offers you complete immunity.

That needs to be debated by the country. Is the knowledge of creating viruses that could kill the world worth the risks? And I don't think it is.

Imposing a 100 percent tariff on all goods imported from countries like China and India is the economic equivalent of shooting ourselves in the foot.

I don't think this has ever been truly and fully adjudicated.