Putin obviously is aware that Obama hates his own country and is ashamed of our history, but, at the same, he spits in his face time and time again. Maybe he feels at this point, perhaps after the missile defense and nuke deals?, that he no longer needs much more from him, or is simply not concerned about him one way or the other.
I don’t think Putin cares either way now...he knows Obama’s out soon and whatever he’s going to do needs to get done within the next months, besides Obama doesn’t listen to the Military leaders anyway.......likely why Obama would agree to anything or anyone putting an end to what’s happening in Syria....he has absolutely no clout whatsoever... somehow you can be sure, though, Obama will toot his own horn no matter who calms the fire in Syria.