The US presidential election is actually a game of “insiders” and “outsiders.” The policy differences between the political parties are no longer important. Bernie Sanders’ “storm” overturned most of the policy orientation of the Democratic Party as well as possibly the legacy of President Obama. Trump’s jumbled points of view and easy win put the Republicans in an extremely difficult position. The reasons why issues of populism and nativism have become dominant in the election can be related to both domestic and international factors. The problems caused by “political correctness”，the departure of the UK from the EU，and populist trends in the EU countries form the background to this election. The policy direction of the new president of the United States will more or less be affected by the populist atmosphere of the election. However，after the core focus of the actual election，post-election policy-making should become more reasonable and limited by many factors. Hence，we should not overestimate the impact of these hot issues in the election.