A bipartisan group of 58 former senior national security officials issued a statement Monday saying that “there is no factual basis” for President Trump’s proclamation of a national emergency to build a wall on the U.S.-Mexico border.

Ambassador and Belfer Center Senior Fellow Wendy R. Sherman, the former U.S. Undersecretary of State for Political Affairs, will lead HKS’s Center for Public Leadership and become a professor of the practice of public leadership in January. Sherman, who negotiated with the North Koreans and the Iranians on nuclear issues, is the author of Not for the Faint of Heart: Lessons in Courage, Power, and Persistence.

WASHINGTON — American intelligence officials are increasingly convinced that Crown Prince Mohammed bin Salman of Saudi Arabia is culpable in the killing of the dissident journalist Jamal Khashoggi, an appraisal that poses challenges to a White House intent on maintaining a close relationship with the kingdom.

Adapted from Not for the Faint of Heart: Lessons in Courage, Power, and Persistence by Ambassador Wendy R. Sherman.

At his Singapore meeting with Kim Jong Un, Donald Trump gave away important U.S. bargaining chips, used North Korea's talking points and blindsided South Korea.

Belfer Center experts offer insight and analysis of the Trump-Kim summit through statements and interviews.

While President Donald Trump prepares for his planned June 12 summit with Kim Jong Un, questions abound about the historic talks. When it comes to North Korea’s nuclear program, what is really on the table? What’s the United States willing to give up in return? And, most crucially, what would a successful deal with North Korea look like?

John R. Bolton, President Trump’s new national security adviser, has never met a war he didn’t want.