The fourth era of American political party history which began in 1968 is characterized by what?

The fourth era of American political party history, which began in 1968, is characterized by the rise of polarization and the realignment of party bases, particularly as the Democratic and Republican parties shifted ideologically. This era saw the Democratic Party becoming more associated with civil rights, social movements, and progressive policies, while the Republican Party increasingly embraced conservative values and a focus on limited government. The aftermath of the 1968 election, marked by social upheaval and political discontent, further solidified these divisions, leading to increased partisanship and distinct regional party identities. Additionally, the role of media and technology in shaping political discourse has expanded significantly during this era.