Adolf Hitler once said that treaties are mere scraps of paper. Donald Trump has the same mentality. In scrapping the Paris Accord, trade deals and now the agreement with Iran, he is showing the world that making agreements and treaties with the US is a waste of time. The US in not only too politically unstable, but it has a seriously mentally and emotionally ill President in the White House. The modern radical Republican party wants all or nothing domestically and internationally.
The US under reasonable leadership, Iran, Britain, France, Russia, Germany and China put the agreement together and none, but Trump wants to scuttle it.
Trump is supposed to meet with North Korea soon. Why bother?