What McCain's Successor on World Stage Must Do

Now that Sen. John McCain has been laid to rest in Annapolis, who will assume his mantle, not only in the halls of the U.S. Congress but around the world? McCain was the leading tribune for robust American engagement in global affairs, the keeper of the faith in the efficacy of American power to advance the cause of peace and freedom throughout the world. From security conferences in Munich and Singapore to battlefields in Georgia and Syria, the late senator served as America's senior spokesman of the bipartisan foreign policy consensus — and his passing creates a vacuum.