Columbia subject headings:
Harvard subject headings:
African American legislators--Biography.
Obama, Barack
Political leadership--United States
Presidents--United States--Biography
Presidents--United States--Election--2008
Racially mixed people--United States--Biography
United States--Politics and government--21st century.
Princeton subject headings:
African American legislators--Biography.
Obama, Barack.
Political leadership--United States.
Presidents--United States--Biography.
Presidents--United States--Election--2008.
Racially mixed people--United States--Biography.
United States--Politics and government--21st century.