How a single sentence from Angela Merkel showed what Trump means to the world
http://edition.cnn.com/2017/05/29/politics/merkel-trump-europe/index.html
President Trump's defect that he is not good at cooperation with others is one of his attractive characters. It's often the case with popular politicians who are supposed to be revolutionists that some voters chose them only by their outstanding character. Especially, those who insist extreme criticism of specific groups are easily nominated
In Japan, specific group often means public servants, big cooperations, Korea or China-related things. In Western countries, it often means Muslims, Jewish or African people.
So, that kind of politicians ignite hidden discrimination buried in citizen's mind.
We have to pay attention to extremists as to agitate people.