JFK, whose troubles were clear and self-inflicted, found his popularity on the rise. The public rallied to a floundering president. In the case of President Obama, failure was, at the time, as much a matter of opinion as of reality, yet he faced a revolt of the public which wiped out his governing majorities in Congress. The answer to what changed between 1961 and 2009 would fill a much fatter book than this one. In a sense, everything changed. I am less concerned with this trajectory than with providing some connective tissue to my theme: the revolt of the public and the crisis of authority,
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