billion worth of chinese exports effective rt starting september 24th with the rate going up to 25% at the end of the year. joining us now, former treasury officials and morning joe economic analyst steve ratner, kn noah rothman and eugene robinson. joe, i just wonder, this is the thing about the team. can someone explain to him what tariffs are and how they work. i suspect they already have. certainly we know this had is the one topic those in the house and senate are talked to the president about. so he knows how this works? again, you go back to portions of woodward s book where people go in and tell him