 Complete the following phrase:  Following the completion of the building in 1981, the Supreme Soviet of Russia, which had until then held its sessions in the Grand Kremlin Palace, used the White House. The Supreme Soviet of Russia remained in the building until the end of the Soviet Union in 1991, as well as during the first years of the Russian Federation. In 1991 the Soviet Union issued a 50-kopeck stamp depicting the White House and honoring resistance to the 