(PRAGUE) — About a quarter of a million Czechs gathered on the 30th anniversary of the Velvet Revolution that brought an end to decades of communist rule in the country to give Prime Minister Andrej Babis an ultimatum — sell your business or quit your job. Protesters from across the Czech Republic attended Saturday’s demonstration, the second massive protest opposing Babis at Letna park, the scene of massive gatherings in 1989 that greatly contributed to the fall of communism. Police estimated some 250,000 people attended the demonstration. The demonstrators see the populist billionaire and his ally, pro-Russian President Milos Zeman as a threat to democracy.