I didn't know what group RP was referring to in the question he asked McCain. More importantly, McCain didn't answer the question. McCain seemed nervous, stuttered once, and seemed to be stalling to use up his time dodging the question. McCain did not look presidential stumbling around.
Just after the debate, RP seemed to shake Rudi's hand and seemed to be going down the row and it appeared that McCain stode past him without shaking. The camera was such a distance from the stage that it may not have been McCain but if anyone watches the debate again, see if that is what happened.