Excerpts from Books and Wikipedia
"His civil rights acts helped black Americans and Native Americans, billions of dollars were spent on his 'War on Poverty,' federal support for education increased, and he introduced the Medicare and Medicaid health programs, which some attacked as the introduction of socialism. However, the cost of the war in Vietnam limited government spending on 'Great Society' programs and made Johnson unpopular. Thoroughly disillusioned, he declined to run in 1968, and Richard M. Nixon became president." [Furtado: 1001 Days]