Which president canceled the Olympics?

The 1980 Olympic Boycott

In January 1980, President Jimmy Carter made a decision that deeply impacted international sports and Cold War politics. Following the Soviet military intervention in Afghanistan in late 1979, the United States administration sought ways to pressure Moscow into withdrawing its forces.

As a result, President Carter issued a clear ultimatum: the United States would not participate in the upcoming Moscow Summer Olympics unless Soviet troops completely withdrew from Afghanistan by a strict deadline. When the deadline passed without compliance, Carter led a massive international boycott, preventing American athletes from traveling to the games and urging other nations to follow suit.