Pre-Obummer.
"For one thing, the maritime boundary treaty has never been ratified by the Russians, which is required for it to take full force. By the time the U.S. Senate had ratified the treaty (signed by the Soviets the previous year), the Soviet Union was near collapse. Shortly afterward, the Russian Federation notified the U.S. government by diplomatic note that it would continue to abide by the terms of the agreement on a provisional basis, however."
http://www.factcheck.org/2012/03/alaskan-island-giveaway/