Demand Trump's Cabinet and other Appointees be Revetted

As an American, I am worried that there might be other people besides Flynn, Tillerson, and Sessions that have ties to the Russian government. I would like to have ALL of Mr. Trump's cabinet picks and other appointees to be rechecked. They were put into positions of major power and some were rushed through without proper background checks. With more and more things coming out with ties to Russia, I think this country could be in danger from foreign entities. Included in these rechecks should be their tax returns. We know too little about some of these people.