Kostadinov is known for his populism, anti-EU and anti-NATO stances, anti-Americanism and anti-Western sentiment, as well as for his anti-migrant and аnti-Macedonian views.

Kostadinov has also espoused strong anti-Romani views, describing Roma people as "parasites" and "non-human vermin that has no place in Bulgaria".

In June 2023, a group of Revival supporters, led by the party's deputy Emil Yankov, attacked a cinema that screened an LGBT film.

In 2013, he left VMRO because of the re-election of its leader, Krasimir Karakachanov, and in the same year ran as a member of the also nationalistic NFSB party.

Kostadinov has also expressed anti-Roma views, describing Roma people as "parasites" and "non-human vermin that has no place in Bulgaria".

[1][11][12] In the summer of 2020, the Court in Sofia launched a procedure for the removal of "Revival" as a political party, on the grounds that it had been fraudulently established through gathering falsified signatures.

[14] In September 2020, Kostadinov was detained by the police during the protests opposing chief prosecutor Ivan Geshev and Borisov's administration.

[15] His party has also been noted for its opposition to many of the pandemic control measures, the promotion of conspiracy theories and having strong reservations regarding the COVID-19 vaccines.