Columbia subject headings:
Harvard subject headings:
Trump, Donals, 1946-
United States--Economic conditions--21st century
United States--Foreign relations--2017-2021
United States--Politics and government--2017-2021
Princeton subject headings:
Trump, Donald, 1946---Influence.
United States--Economic conditions--2009-
United States--Foreign relations--2017-.
United States--Politics and government--2017-.