Absolutely. This administration cares nothing for the law, which says that when Congress subpoenas you, you must respond. Punishment is necessary if we are to have laws in this country. It's not a matter of politics. It's a matter of the collapse of our system of laws, and every time they're ignored with no consequences, it chips away at law and order. It also sends a message to everyone in the USA that ignoring the law is ok. The President does it, his cronies do it, so why can't anyone else? We need to see consequences.