National Democratic Union (UDN)
Liberal-conservative opposition to Vargas and to labor politics between 1945 and 1965, it defended free enterprise, anti-communism and the fight against corruption, had Carlos Lacerda as its loudest voice and backed the 1964 coup.
- Predominant spectrum
- Right
- Closest ideology
- National Liberalism
- Closest personality
- Tarcísio de Freitas





















