Columbia subject headings:
Harvard subject headings:
Campaign funds--Law and legislation--United States
Campaign funds--United States
Citizens United--Trials, litigation, etc.
Political corruption--United States
Presidents--United States--Election
Presidents--United States--Election--Finance.
Rich people--United States.
United States--Politics and government--2009-2017.
United States. Congress--Elections--Finance.
United States. Congress--Elections.
Princeton subject headings:
Campaign funds--Law and legislation--United States.
Campaign funds--United States.
Citizens United--Trials, litigation, etc.
Presidents--United States--Election--Finance.
United States. Congress--Elections--Finance.