File photo taken on Jan. 20, 2017 shows U.S. President Donald Trump (C) addresses the presidential inauguration ceremony in Washington D.C., the United States. Donald Trump was sworn in on Friday as the 45th President of the United States. Jan. 20, 2018 reaches one-year mark for Donald Trump as the 45th president of the United States. One year into U.S. President Donald Trump's presidency, the uncertainties and anxieties over his unconventional playbook appear to have not diminished. As he seeks to implement his campaign promises, which seem controversial and even unacceptable to many, rifts, feuds and controversies dogged the year and 2018 would probably not be any different. (Xinhua/Yin Bogu)