It's interesting the things that can unintentionally bring the U.S. and Russia together. There was the alliance with Stalin based on a common enemy. There was the post-Cold War period of the 90s. Now there could be other things to bring the two countries together, once again based on common enemies. Whether or not the things happening recently will make much impact, of course, is debatable. In all honesty, I haven't read up too much on recent U.S-Russian relations. I used to keep up with that kind of stuff quite a lot.
The enemy of my enemy is my friend.