Donald Trump's victory has surprised many Europeans and probably other people elsewhere in the World. It seems clear that Americans really wanted a change !
After 8 years (2009 - 2016) by President Obama, a Democrat, Americans were reticent to elect another Democrat, Hilary Clinton, whose husband Bill Clinton had already been President (1993 - 2000).
Trump's brash way of speaking sent shock-waves around the diplomatic world, but perhaps not around the USA. He is a Businessman and a Billionaire, so as one must admit, he got something right ! In the TV debates he was attacked for his morals but countered by criticising those of others !
During the Campaign, Trump was vague on the Foreign Policies he would introduce. This is what troubles Europeans today.