One of Donald Trump’s few unambiguous foreign-policy commitments when he took office last year was to mend Washington’s relationship with the Russian Federation, which had been worsening for the previous half-decade. Trump’s opposite number in Moscow, Vladimir Putin, seemed eager to reciprocate. Instead of improving, however, U.S.-Russian relations have continued to deteriorate. Old notes of disagreement have been sharpened and new ones—in geo-politics, geo-economics, and geo-ideas—have emerged. What are the reasons for this downward spiral? How far will it go? Is it fair to say we are witnessing a new Cold War? What are and will be the consequences for international peace and stability? Professor Colton will address these questions with reference to the broad agenda and to specific points of conflict, including the now chronic Ukraine crisis, American and Western sanctions, Syria, Iran, arms control, energy, and dealings with China. He will also share thoughts on the domestic determinants that increasingly complicate the relationship, especially on the U.S. side, and may well be locking in its most adversarial aspects for the indefinite future.