This is the wrong question. Yes, of course the members of NATO should keep their commitments to contribute financially. But does the US pay more if one of them pays less? No. First, they don't "owe us" their dues, the money is to be spent by each nation. Second, the agreement is that the goal is that by 2024 each nation in the treaty organization will be contributing a certain percentage of their budget to common defense. So for the Republican Administration to get all bent out of shape years before the goal year is ridiculous. It's bad enough that the Chief Executive doesn't understand how this treaty works and is undermining the trust our allies have in us; don't let's have the legislature underline & reinforce his destructive misunderstanding.