POWER OF THE "DEEP STATE"?

In response to criticism for having engaged in negotiations with the Russian Government to build a Trump Tower in Moscow, Trump says that he was "allowed" to do so, and presumably to lie, to the American people, about it.  Since there is nothing mentioning such a power allowing this in our Constitution, it may be the first material indication of that "deep state" which Trump says exists and controls things.  I trust that Congress will take the opportunity to investigate how it came to be that Trump was allowed this privilege.