U.S. aid is critical not just for Ukraine, but for U.S. credibility in Russia and beyond.

History will judge the Trump presidency to have been a consequential one, but more for its destructive effects than for its achievements.

Diplomacy could well come to occupy center stage for a president who relishes summitry.

Next week Donald J. Trump returns to the United Nations for the annual opening of the UN General Assembly. While Trump exceeded expectations during his first UN appearance last year, he will face mor…

Those attending Davos would be wise to realize that some of Trump’s populist message may be right. Likewise, the president must recognize that “making America great again” requires the U.S. to shape …

The Trump administration has threatened massive new tariffs against China, promising that protection against imports will bring greater fairness and prosperity to our economy. But these actions will …