Trump pulled a fast one on his own national security team by forgoing verbal commitment to NATO's Article 5

National Security Adviser H.R. McMaster, Defense Secretary Jim Mattis, and Secretary of State Rex Tillerson all supported [Trump's recommitment to Article 5] and had worked in the weeks leading up to the trip to make sure it was included in the speech, according to five sources familiar with the episode. They thought it was, and a White House aide even told The New York Times the day before the line was definitely included.[…] The president appears to have deleted it himself, according to one version making the rounds inside the government, reflecting his personal skepticism about NATO and insistence on lecturing NATO allies about spending more on defense rather than offering reassurances of any sort; another version relayed to others by several White House aides is that Trump's nationalist chief strategist Steve Bannon and policy aide Stephen Miller played a role in the deletion. [Politico Magazine]