Columbia subject headings:
Elections--United States.
Obama, Barack.
Political campaigns--United States.
Presidents--United States--Election--2008.
United States--Politics and government--2001-2009.
Harvard subject headings:
Elections--United States
Obama, Barack
Political campaigns--United States.
Presidents--United States--Election--2008
United States--Politics and government--2001-2009
Princeton subject headings:
Obama, Barack.
Political campaigns--United States--History--21st century.
Presidents--United States--Election--2008.
United States--Politics and government--2001-2009.