Columbia subject headings:
Political leadership--United States--History--20th century.
Political leadership--United States--History--21st century.
Presidents--United States--Election--History--20th century.
Presidents--United States--Election--History--21st century.
Rhetoric--Political aspects--United States--History--20th century.
Rhetoric--Political aspects--United States--History--21st century.
Harvard subject headings:
Political leadership--United States--History--20th century
Political leadership--United States--History--21st century.
Presidents--United States--Election--History--20th century
Presidents--United States--Election--History--21st century.
Rhetoric--Political aspects--United States--History--20th century
Rhetoric--Political aspects--United States--History--21st century.
Princeton subject headings:
Political leadership--United States--History--20th century.
Political leadership--United States--History--21st century.
Presidents--United States--Election--History--20th century.
Presidents--United States--Election--History--21st century.
Rhetoric--Political aspects--United States--History--20th century.
Rhetoric--Political aspects--United States--History--21st century.