Columbia subject headings:
Communication in politics--United States.
Political campaigns--United States--History--21st century.
United States--Politics and government--2009-2017.
United States. Congress--Elections, 2014.
Harvard subject headings:
Princeton subject headings:
Communication in politics--United States.
Political campaigns--United States--History--21st century.
United States--Politics and government--2009-
United States. Congress--Elections--2014.