Senate Minority Leader Mitch McConnell has rebuked fellow Republicans over their disturbing “cult of personality” around Hungary’s illiberal ruler, Viktor Orbán. Led by Donald Trump, conservatives have spent years fawning over Orbán, someone who has denounced “mixed-race” countries and whose political party has employed antidemocratic means to stay in power. But tacit support for the Hungarian leader’s bigotry and illiberalism wasn’t why McConnell bashed his fellow conservatives from the Senate...