Aid and comfort to the enemy. Freeze their assets.
Interesting, isn’t it, that the money coming in to fund these “republicans” is from left wing Democratic billionaires. That should tell you everything you need to know about the “republican” opposition to Trump.
Virtually all these members of the “Billionaire’s Club” are hedge fund managers. Early on, Donald Trump railed against the “hedge fund managers” in his drive to election as President, and indicated he despised both how they made their money, and how they directed the fruits of that enterprise to intimidate and throttle back real growth and innovation here in the United States.
Pretty accurate assessment, I would say.