"The essence of the treaty power," Biden concluded, "is that the president and the Senate are partners in the process by which the United States enters into, and adheres to, international obligations."
Back then, Senator Biden was taking a victory lap for having convinced the Senate to limit its approval of President Reagan's treaty with the Soviet Union on Intermediate-Range Nuclear Forces, by attaching a "condition" that would require the executive branch to defer to the Senate's interpretation of the treaty's terms.
But the condition—which, with characteristic modesty, Biden called "the Biden Condition"—did even more than that. As Senator Biden put it in 1989, the Senate's move did nothing less than "
repudiate decisively" the Reagan administration's theory of the president's diplomatic authority under the Constitution.
http://www.weeklystandard.com/blogs...itutional-power-he-was-against-it_881791.html