They all went in thinking it would be business as usual.

Instead they got a dose of what it is and will most likely be like dealing with an individual who doesn't owe anybody anything.....or have to bow to belong to their "club".

He knows they will continue to hack away at him just as they have been since the election.
He knows they are not in any way shape or substance going to treat him fairly.

Yes, he set the stage to make them peronally aware he is his own man....like it or not, that is exactly why the majority of America backed Trump.

No more business as usual.

Donald Trump’s media summit was a ‘f—ing firing squad’ | New York Post

We already know what the Clinton supporters responses will be to the meeting.....more of the same BS that has been espoused since their candidate and the established got the first trouncing from America.