The more commonly held view of contemporary political leaders and political scientists regarding public opinion is based on which theory?

When Europeans first established colonies in North America, the only communications technology available was what?

A) Television D) Morse code B) Radio E) Post office C) Printing press

Which of the following was a major problem for Mexican President Enrique Peña Nieto?

a. Drug-related violence. b. Pollution in the Gulf of Mexico. c. American efforts to secure the border with Mexico. d. The theft of funds by his political associates.