With the exception of which presidency, an argument can be made that a sixth, Republican-dominated party system has emerged since 1968.

What approach did John F. Kennedy, Jimmy Carter, and Bill Clinton use in managing the White House staff?

a. collegial b. competitive c. hierarchical d. persuasive

A shift away from the use of mercenaries to fight wars was accompanied by which other change in the nature of warfare?

a. Military dictatorships became more common. b. The military became increasingly bureaucratized. c. Society became increasingly immunized from warfare. d. Nation-states fought wars against each other more frequently.