http://www.salon.com/news/politics/2010_elections/index.html?story=/tech/htww/2010/07/28/lyndon_johnsons_tea_partyFrom the article on salon.com, which talks about the backlash to LBJ's civil rights legislation and medicare:
The backlash against the Great Society did not immediately threaten Democratic control of the House and Senate. The Republicans gained 47 seats in the House, and still were down by 60! In the Senate, the GOP only gained three seats, leaving Democrats with 63. But there's little doubt that the pendulum had started to swing. The Voting Rights Act and associated civil rights legislation ended Democratic dominance in the South, contributed to Richard Nixon's victory in 1968 and put into motion the forces that swept Ronald Reagan into power.
(As an aside, those of us who wring our hands at the harsh rhetoric of Tea Party activists would do well to go back and consider the tone of political debate during the peak intensity of the struggle to pass civil rights legislation. Perlstein makes an indisputable case that it was far, far uglier then than it is now.)
It is folly to compare the incredible achievements of the 89th Congress with the record of the past 18 months, but it is worth considering: In both cases the fierce counterreaction from the right does not necessarily represent a failure by the governing party, but its success. The passage of the Voting Rights Act and an awesome slate of progressive legislation turned white Southern Democrats into Republicans. The passage of healthcare reform -- the first major healthcare-related legislation since Medicare -- energized the Tea Party.
(read the whole thing; it's worth it)