Khrushchev's power in the soviet union weakened when he was forced to back down from his plans to install nuclear missiles in the western hemisphere in nicaragua

Actually, the leader of the Soviet Union got it's power weakened when he was force to resign from his plans to install nuclear missiles in Cuba. That made people see him as any other person, not as a leader anymore.

Have a nice day! :)

Ais 190 b is 200c it can't be more then 100%