How would you discourage the proliferation of coal-fired power plants in developing countries?

Under what circumstances, if any, would you support the United States joining the Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP), formerly the Trans-Pacific Partnership?

By 2050, Africa will account for 25 percent of the world’s population according to projections by the United Nations. What are the implications of this demographic change for the United States, and how should we adjust our policies to anticipate them?

Do you support a two-state solution to the Israeli-Palestinian conflict and, if so, how would you go about trying to achieve it?

Given the assassination of Jamal Khashoggi and Saudi Arabia’s involvement in the civil war in Yemen, what changes, if any, would you make to U.S. policy toward Saudi Arabia?

What, if any, steps would you take to counter Russian aggression against Ukraine?

Would you sign an agreement with North Korea that entailed partial sanctions relief in exchange for some dismantling of its nuclear weapons program but not full denuclearization?

Would you rejoin the 2015 Joint Comprehensive Plan of Action (JCPOA)? What changes to the existing agreement, if any, would you require before agreeing to rejoin the accord?

How, if at all, should China’s treatment of the Uighurs and the situation in Hong Kong affect broader U.S. policy toward China?