republican senator kevin cramer of north dakota said, quote, "he treated it like a mini rally in a lot of republicans. you have to be talking to the swing voters in swing states. he could do that better with details." we're also getting reaction from inside the trump camp. one adviser telling nbc news, quote, "it was not his best performance, without question." that's from inside the trump camp. a long-time republican operative saying, "i know everyone in the world has said this, but the inability, unwillingness to realize when he is being baited and not fall for it is constantly baffling." how about this? robert f. kennedy jr. of course, recently suspended his presidential campaign to endorse trump, criticized trump's debate performance. >> vice president harris clearly won the debate in terms of her delivery, her polish, her organization, and her preparation. i think on substance, president trump wins in terms of his governance, but he didn't tell that story. >> in the from a guy, john, with an affinity for eating animals that he hit on the side of the road. that's tough criticism. >