Obama's coming at it from a completely different direction. His idea of "constructive" is polar opposite from mine. In short, Ted Cruz would be light years more constructive for the US than Trump. Cruz 'gets' many things that Trump doesn't, particularly when it comes to Putin and his mission to basically bring back the Soviet Union (and then-some if you include military positions in the strategic, resource-rich Middle East).
As I've pointed out numerous times with my, er, "spam" posts, Russia is not only invading or threatening their neighbors in Eastern Europe, they've been stepping up their arms transfers to hostile leftist regimes throughout Latin America. That plus holding annual war games with the ChiComs in obvious preparation for war with US and out NATO allies. But you go on closing your eyes and ears to all of this.
Cruz hasn’t even noticed the Christian element of Russia. It’s not atheistic any more over there, in case anybody noticed.