Did you watch the video cause that is pretty much what he did say, is the video doctored?
in the context of a Russian attack
'You didn't pay? You're delinquent?'... 'No I would not protect you, in fact I would encourage them to do whatever they want. You gotta pay.'"
Them being Russia
here is headline
"Trump says he would 'encourage' Russia to attack Nato allies who do not pay their bills"