The problem is, if Putin feels he was betrayed, there could be consequences we actually don't like. This is a guy who poisons people to death for writing about him in newspapers. Putin's response to the metaphorical tap on the shoulder in Syria (six hours) was pretty severe, and Russian troops move towards the North Korean situation as we speak. There seems to be little to no chance that Trump can lower or remove Russian sanctions at this point. If Putin tried to make a deal with Trump or his admin, he got cheated. But unlike the hundreds of contractors that Trump refused to pay, Putin won't either give up, or resort to suing. Putin can, and will, actively engage with foreign affairs to make things worse. Iran? France? Marco Rubio? We'll see. Hopefully, it's not military.