Here is the sentence that was prepared for Trump's speech at NATO -- the sentence he did NOT say:
“We face many threats, but I stand here before you with a clear message: the U.S. commitment to the NATO alliance and to Article 5 is unwavering.”

Here is what he said at yesterday's (Friday) news conference:
" “I’m committing the United States, and have committed, but I’m committing the United States to Article 5 and certainly we are there to protect, and that’s one of the reasons that I want people to make sure we have a very, very strong force. ... But, yes, absolutely I’d be committed to Article 5.”

Too little, too late, too incoherent.