The European Union has largely tolerated Hungary's nationalist Prime Minister Viktor Orban, despite his government's crackdown on civil society and virulently anti-migrant rhetoric.
Then came the billboards depicting two elderly men who appear to be cackling. One is the president of the European Commission, Jean-Claude Juncker. The other is Hungarian-American billionaire George Soros, who Orban loyalists falsely claim is plotting to flood Europe with Muslim migrants.
"You have the right to know what Brussels is planning," the billboard reads.