Reagan's rise: How and why

Even Republicans piled on President Richard Nixon as the Watergate scandal wore on. But not California Governor Ronald Reagan. He said Watergate was being "blown out of proportion" and was "none of my business". Rick Perlstein writes in his new book The Invisible Bridge: The Fall of Nixon and the Rise of Reagan that incredulous reporters thought Reagan was acting like a "genial ostrich" ignoring the looming reckoning for American government.

Ostrich or no, Reagan's point of view resonated with people - or at least some people. "There were two tribes in America now," Perlstein writes early in the book. And Reagan spoke powerfully to one of those tribes: the ones who were organizing around grievances like forced busing, the ones who had the sense that the orderly America they loved was receding.

The Invisible Bridge is the story of "the right-wing insurgency bubbling barely beneath the surface" through the mid-1970s. And it's the story of the national rise of the politician who benefited the most from that insurgency.