IIRC quite a number of the plotters had a foreign office background, so Hitler seems to have regarded him with the same skepticism he now regards the General Staff.
I was joking about him being excess baggage; well, not really. All humor has a basis in truth.
I don’t think they were looking at whacking Ribbentrop. Some of the rumors about internal German politics flying around Western newspapers are pretty crazy. But if only they knew what was really going inside Germany was crazier still.