Short Answer 
The political realignment of the 1960s was influenced by major factors like the Civil Rights Movement, Roe v. Wade, and the Vietnam War, leading to shifts in party loyalty and public ideology. This era marked a significant transformation in American politics, as individuals re-evaluated their affiliations based on evolving societal values related to equality, social justice, and foreign policy.
Step 1: Understanding Political Realignment
Political realignment refers to the significant shifts in party loyalty and electoral support within a political system. It often occurs due to major societal changes and crises. In the 1960s, several critical events prompted individuals to reconsider their political affiliations and ideals, leading to a transformation in American politics.
Step 2: Key Factors Influencing Change
Several crucial historical events during the 1960s greatly contributed to the political realignment. These include:
- The Civil Rights Movement: It galvanized public opinion and shifted the focus towards equality and social justice.
- Roe v. Wade: This landmark Supreme Court ruling in 1973 was significant for women’s rights and altered political alignments regarding reproductive issues.
- The Vietnam War: Widespread opposition to this conflict influenced public sentiment, resulting in a decline in support for political leaders associated with the war.
Step 3: Lasting Impact of the 1960s
The 1960s represented a critical juncture in American history, as the combination of social movements and political discontent triggered a temporary yet profound shift in public ideology. Individuals began to align with parties that reflected their evolving values, especially concerning civil rights, social issues, and foreign policy. This period laid the groundwork for the ongoing evolution of party politics in the U.S.