Well, the Dotard is in Belgium after spending two days bashing NATO and the European Union. He thinks that other NATO nations aren't paying their fair share for defense, though the United States' spending on military matters is completely out of whack. He's also whining about the US trade deficit vis-a-vis the EU, but here's where I note that Americans want European wines, cheeses, and olive oils while nobody in Europe is itching to get some Velveeta... there are reasons for this trade deficit, and they don't involve Continental chicanery.
This insistence that our NATO allies are cheating us reflects the Dotard's mindset- he looks at NATO as if it were a classic Mafia style protection racket, and is trying to shake down the other signatories to the treaty that formed the organization. It's a case of 'Nice country you've got there, Estonia... be a shame if something happened.' Weakening NATO will only strengthen Russia's position on the world stage, and Western defense experts are gaming out possible Russian moves to destabilize the Alliance further. With Dotard planning to meet with Putin after his visits to Belgium and the UK, it seems more likely to me that he is actively working on behalf of Putin rather than merely taking Russian money and looking the other way... I suppose that would make him less of a dotard and more of a mole.