Watch Stephen Harper, prime minister of Canada, discuss priorities for Canadian foreign policy, including climate change, the Americas and NAFTA, security in Afghanistan, and arctic sovereignty.

Chairman of the Council of Economic Advisers Kevin Hassett discusses economic growth, international trade talks, and the impact of the Trump administration’s policies on the U.S. economy.

Deputy Secretary of Defense Robert O. Work joins James E. Sciutto, chief national security correspondent at CNN, to discuss Department of Defense policy toward the Asia-Pacific region.

MARIE-JOSEE KRAVIS:  Hello.  I'm Marie-Josee Kravis, and I'm very happy to be able to introduce to you Canada's prime minister.  But before I do so, I'd like to ask everyone to please turn off cellp…

As we approach the fifteenth anniversary of the assembly of the International Space Station, please join Scott Pace and Robert Walker to discuss the U.S. space program in the context of budget cuts, …