The rise of a new kind of political science in the 1960s has been driving a wedge between political insiders and voters ever since. By turning voters into interest groups, it stopped establishment leaders from articulating a national narrative. It opened the way for Movement Conservatives to create today's political crisis.
At the turn of the last century, extremists were forced back to the political fringes while younger politicians resurrected the vitality of the original Republican vision. They recognized that the nation could only develop and grow by protecting equality of opportunity for hardworking Americans at the bottom of the economic ladder.
Only a few years after building a federal system that cleared the way for equal opportunity, Republicans faced a racist and xenophobic backlash against an active government - and they folded. By the 1880s, the party's leaders had abandoned their message of opportunity and tied themselves to big business.