Officially, the secretary of state is the president's chief foreign policy advisor

The European Union and the United States have cut off all trade with Iran over Iranian attempts to develop nuclear weaponry. This is an example of

A) economic sanction. B) embassy closure. C) foreign restriction. D) nontariff barrier. E) tariff.

Interest groups are important subjects of study in American politics because __________

a. they are always successful in getting their demands met by government b. they provide a venue for citizens to participate in government c. most lobbyists eventually serve in Congress d. they determine who runs for elected office