Which U.S. president is most frequently associated with embracing human rights issues and institutions?

The only way to avoid confounding two variables is to make sure that

A) They vary independently of one another. B) All variables are held constant. C) All variables are allowed to vary freely. D) All variables are properly labeled.

Which of the following statements best characterizes the nature of the conflict between presidents and Congress?

a. The conflict is a by-product of the weakening of American political parties. b. The conflict is integral to the design of the Constitution, deliberately intended to balance power. c. The conflict is a by-product of the recent polarization of the American party system. d. The conflict is a by-product solely of divided government.