In recent decades, observers of American foreign policy have come to see it as a thoroughly executive branch responsibility. Understandably so. Congress has long demonstrated only episodic interest in foreign affairs, and not always in the most constructive ways. Fortunately, this looks to be changing. Recent case-in-point, Speaker Nancy Pelosi’s visit to Taiwan. Yes, it was mostly symbolic. I mean, one thing the Constitution does give the executive is indisputable control over America’s official diplomatic contacts.