Donald J. Trump is inaugurated as the 45th President of the United States.

Millions of people around the world participate in the Women’s March, the largest single-day march in US history, to protest the Trump administration and its policies

President Trump directs the office of the US trade representatives to withdraw the United States from the Trans-Pacific Partnership

President Trump signs an executive order that denies entry into the United States for people from Iran, Iraq, Libya, Somalia, Sudan, Syria, and Yemen, and suspends the Refugee Admissions Policy for 120 days. Trump’s travel ban sparks large protests and legal challenges. As a result of legal challenges, Trump revises the executive order.

President Trump signs $1.5 trillion tax bill into law. The bill overhauls the federal tax code and is a victory for Republicans. The bill cuts taxes for corporations and the wealthy while delivering only moderate cuts to most Americans.

Prrsident Trump launches a still-running tariff war against China by slapping tariffs of between 30 and 50 per cent on solar panels and washing machines. Tariffs are gradually applied to other US imports from China and to other countries.