Columbia subject headings:
Europe, Western--Politics and government.
Political party organization--Europe, Western.
Populism--Europe, Western.
Right-wing extremists--Europe, Western.
Harvard subject headings:
Europe, Western--Politics and government.
Right-wing extremists--Europe, Western--Congresses.
Princeton subject headings:
Europe--Politics and government.
Populism--Europe.
Right-wing extremists--Europe, Western--Congresses.