To be honest, I think he wants to stay in, but only if other countries pick up their share.If the President wants us out of NATO, there's probably a pretty good reason for it. .
NATO like the UN are both organizations that cost the USA a LOT of money with little return. Neither has any credibility or bite because they never do anything. I'm sure Trump realizes that for the money we invest, that money could be better spent. The problem is that while we might come to the aid of another country, it doesn't take a rocket scientist to realize that if the USA came under attack and needed help, NONE of our "allies" would lift a finger to help us. It's all a one way street.
No he wants out because of Putin.
Just like when he made a decision to withdraw from Syria. Putin congratulate him. The rest of the world are crying including his own buddies.
What US interests is served by US being in Syria?
To stabilize the region or protect the Kurds from getting massacred by turkeys. To stop Putin your buddy and Assad taking over Middle East spreading terrorism.
Neither is an US interest. Please try again.