Over the past half century, social class has had an increasingly polarizing effect on the average person's political opinions.

Originally, members of the Senate were selected by

A) direct elections. B) the president. C) state legislatures. D) primary runoffs. E) regional coalitions.

______ explanations focus on how resource revenue enables dictators to resist pressure to democratize and helps them consolidate their hold on power.

A. Aggregate demand B. Political science curse C. Demand-side D. Supply-side