Why does Trump want to pull out of NATO?

Why does the U.S. administration believe that NATO’s founding principles and membership need to be ‘re-examined’? Why was NATO formed, and what are the recent developments that have led to fissures? Can the U.S. easily exit NATO? How much does it contribute to the alliance?

from World News Today: International News Headlines - The Hindu | The Hindu https://ift.tt/7YpUEBh