Ali defended his title against former heavyweight champion Floyd Patterson on November 22, 1965. Before the match, Ali mocked Patterson, who was widely known to call him by his former name Cassius Clay, as an "Uncle Tom", calling him "The Rabbit". Ali won the fight in the 12th round through technical knockouts.
He soon instituted phased U.S. troop withdrawals (From Vietnam), but also authorized incursions into Laos, in part to interrupt the Ho Chi Minh trail, which passed through Laos and Cambodia and was used to supply North Vietnamese forces. Nixon announced the ground invasion of Cambodia to the American public on April 30, 1970.
Further protests erupted against what was perceived as an expansion of the conflict, and the unrest escalated to violence when Ohio National Guardsmen shot and killed four unarmed students on May 4.
Debate continued within the library community until the Legislative Reorganization Act of 1970 shifted the library back towards its legislative roles, placing greater focus on research for Congress and congressional committees and renaming the Legislative Reference Service to the Congressional Research Service.
The 1970 Georgia gubernatorial election was held on November 3, 1970. It was marked by the election as Governor of Georgia of the relatively little-known former state Senator Jimmy Carter after a hard battle in the Democratic primary. This election is notable because Carter, often regarded as one of the New South Governors, later ran for President in 1976 on his gubernatorial record and won.