Two weeks into President Trump’s first term, the White House has launched a review of its North Korea policy. Dealing with the threat from Pyongyang's missile launches and nuclear weapons program is likely to top the administration's security agenda in the region. Paul Haenle spoke with Tong Zhao, a fellow in Carnegie’s Nuclear Policy Program based at the Carnegie–Tsinghua Center for Global Policy, about how North Korea and other regional security challenges will fit into the new context for U.S.-China relations under the Trump administration.