The Trump–Tsai call was a telephone conversation between the U.S President-elect Donald Trump and the President of the Republic of China (commonly known as Taiwan) Tsai Ing-wen which took place on December 2, 2016. This event marked the first time since 1979 that a U.S. president or President-elect had directly spoken with a ROC President. In the call, Tsai congratulated Trump for his victory in the presidential election.