He caught them all.
If they were being American, patriotic, supporting the constitution and the American people, they have nothing to worry about.
You give them the benefit of the doubt and trust people at their words and hope they do the "right thing." They had their chance to do that.
If they were being treasonous and subverting his admin, this is the way you get them caught, have them come work for you.
It's their rope, and they do the tying.