Conversation so far:
How is Richard Nixon associated with the Soviet Union?
Richard Nixon initiated détente and the Anti-Ballistic Missile Treaty with the Soviet Union the same year.
Did Richard Nixon travel to the Soviet Union?
Following the announcement of his visit to China, the Richard Nixon administration concluded negotiations for him to visit the Soviet Union. The President and First Lady arrived in Moscow.
Who did Richard Nixon and the First Lady deal with while they were in Moscow?
Leonid Brezhnev, the General Secretary of the Communist Party; Alexei Kosygin, the Chairman of the Council of Ministers; and Nikolai Podgorny, the head of state, among other leading Soviet officials.
Were Richard Nixon and the First Lady  successful with what they were trying to accomplish in Moscow?
agreements for increased trade and two landmark arms control treaties: SALT I, the first comprehensive limitation pact signed by the two superpowers, and the Anti-Ballistic Missile Treaty were made
Are there any other interesting aspects about this Richard Nixon in the Soviet Union article?
During the previous two years, Richard Nixon had made considerable progress in U.S.-Soviet relations, and he embarked on a second trip to the Soviet Union in 1974.
Did the soviet leader ever come to America to visit Richard Nixon?

Question: Who went with nixon to the Soviet Union?
Self-contained rewrite: Who went with Richard Nixon to the Soviet Union?