@CNN: A senior European official has told CNN that NATO members are preparing for a worst-case scenario at the summit, amid fears that President Donald Trump will follow through on his threat to pull US military protection for allies https://t.co/JxFIJSPmQc

@CNN: A senior European official has told CNN that NATO members are preparing for a worst-case scenario at the summit, amid fears that President Donald Trump will follow through on his threat to pull US military protection for allies https://t.co/JxFIJSPmQc