It’s a long time since a mayoral by-election in a small Hungarian town excited international news coverage. Some weeks before Hungary’s general election, a stronghold of the governing party was lost to the opposition. It’s funny how, according to most of the international media, when the opposition wins, Hungary is a democracy, but when Viktor Orbán wins, it isn’t.

Viktor Orbán’s landslide victory on Sunday now makes him the most successful Hungarian politician ever. That’s not my opinion. That’s a fact. He had his first term as prime minister in 1998 at the age of 35, and, since 2010, has won three successive terms. He has not just won them Theresa May-style or Angela Merkel-style with a few...