Mexican President Enrique Peña Nieto cancels a scheduled trip to the United States after a heated phone call with U.S. President Donald Trump, in which Trump refused to publicly back down from his pledge of having Mexico pay for the U.S.–Mexico border wall.
Two transcripts of telephone conversations between U.S. President Donald Trump and foreign leaders are leaked. Trump was shown to disagree with Mexican President Enrique Peña Nieto on 27 January over the proposed border wall, and with Australian Prime Minister Malcolm Turnbull the next day over the resettlement deal of refugees in Nauru and Manus.
United States President Donald Trump, together with Senators Tom Cotton and David Perdue, unveils the RAISE Act, a plan that would, if passed, reduce legal immigration to the U.S. by half each year, and implement a "merit-based system" prioritizing skilled workers, instead of the current family-based chain migration system.
Luis Videgaray Caso resigns as Mexico's finance minister amid fallout over President Enrique Peña Nieto's controversial meeting with U.S. presidential candidate Donald Trump in Mexico City. Videgaray is revealed to have been the main advocate of arranging the meeting.