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

The fourth era of American political history, beginning in 1968, is characterized by significant political polarization and the emergence of a more contentious and divided political landscape. This period saw the rise of identity politics, with movements advocating for civil rights, women's rights, and LGBTQ+ rights influencing party platforms. The era also experienced a shift in party alignment, particularly with the realignment of Southern whites to the Republican Party and the increasing influence of conservative ideology. Additionally, political discourse became more confrontational, reflecting broader societal changes and cultural conflicts.