Truman is now seen as a near-great president because he put in place the containment doctrine boosted by the Truman Doctrine and the Marshall Plan and NATO, which historians now see as having been at the center of American success in the cold war.

It is very difficult for [people] to accept the idea that someone as inconsequential as Oswald could have killed someone as consequential as Kennedy.

Like Lyndon Johnson, President Obama understands that timidity in a time of troubles is a prescription for failure.

... what's in a person's heart and soul will not likely be changed by the ability to command a helicopter to land on the South Lawn.

In counterfactual history, nothing is certain.

The consequence of the Bay of Pigs failure wasn't an acceptance of Castro and his control of Cuba but, rather, a renewed determination to bring him down by stealth.

As someone who has more than a passing acquaintance with most of the 20th century presidents, I have often thought that their accomplishments have little staying power in shaping popular views of their leadership.