Donald John Trump (born June 14, 1946) is the 45th and current president of the United States. Before entering politics, he was a businessman and television personality. During his presidency, Trump ordered a travel ban on citizens from several Muslim-majority countries, citing security concerns; after legal challenges, the Supreme Court upheld the policy's third revision. He enacted a tax-cut package for individuals and businesses, rescinding the individual health insurance mandate penalty. He appointed Neil Gorsuch and Brett Kavanaugh to the Supreme Court. In foreign policy, Trump has pursued an America First agenda, withdrawing the U.S. from the Trans-Pacific Partnership trade negotiations, the Paris Agreement on climate change, and the Iran nuclear deal. He imposed import tariffs which triggered a trade war with China, recognized Jerusalem as the capital of Israel, and withdrew U.S. troops from northern Syria. Trump met three times with North Korea's leader Kim Jong-un, but talks on denuclearization broke down in 2019. Members of the alt-right enthusiastically supported Trump's campaign.