Trump cracks down on border crisis

President-elect Trump's pre-inauguration announcement of potential tariffs on Mexico, Canada, and China is the main focus. This action was intended as a measure to reduce the flow of migrants and drugs into the United States. The text also introduces ABC News Digital as a news source providing various news programs and live coverage. The excerpt highlights a significant policy threat made by the incoming president. The ABC News description serves as background information on the source of this news.