Donald Trump and Vladimir Putin could take fresh approaches on contentious issues, including Russia’s meddling in U.S. elections, Ukraine, Syria, and arms control, to their meeting in Helsinki.

The United States has reactivated sanctions against Iran that could trigger the collapse of the multilateral Iran nuclear deal.

President Trump’s revocation of a former CIA director's security clearance has stirred up a debate about access to government secrets, free speech, and democratic norms.  

President Trump has struck a new NAFTA deal with Mexico, but with severe disagreements remaining between the U.S. and Canada, his approach to trade negotiations is about to get its biggest test yet.

A new agreement between top U.S. and Indian officials will deepen military cooperation and bolster strategic ties between the two countries.