Short answers, pulled from the story.
The Washington Summit of 1987 took place on the 8th of December 10 between United States president Ronald Reagan and General Secretary Mikhail Gorbachev. The Oval Office hosted discussions from 10:45 A.M. to 12:30 P.M. on December 8.
The agreement eliminated shorter-range and medium-range missiles as planned for December 8 signing. Most details relating the INF Treaty had already been worked out by the time the summit started.
Former President Richard Nixon voiced strong opposition to the INF Treaty agreement. Former Secretary of State Henry Kissinger joined the criticism against the treaty terms and commentator William Buckley spoke out against the administration's decisions publicly.
The Oval Office hosted discussions from 10:45 A.M. to 12:30 P.M. on December 8 while the Cabinet Room held sessions from 2:30-3:15 P.M. focusing on arms control for conventional and chemical weapons. The Family Dining Room hosted a working luncheon from 12:40 to 2:10 P.M.
Political pressure mounted heavily in the months leading up to this meeting due to the Iran-Contra scandal generating significant political pressure throughout the year. Reagan failed to win approval for Supreme Court nominee Robert Bork by late October 1987 and the stock market caused trouble during that autumn season.