European leaders could have a lively meeting next week at Prague. In a freshly unearthed video that pre-dates her rise to be Italy’s next premier, firebrand Giorgia Meloni laces into Emmanuel Macron with gusto, accusing the French president of authoring Western Europe’s migrant crisis. The strong showing of Ms. Meloni’s  anti-immigrant Brothers of Italy party in recent national elections makes her the frontrunner for Italy’s next prime minister, a role she is expected to assume as soon as this month at Rome.

In a video from 2018 presently making the rounds of the European press, Ms. Meloni lobs multiple rounds of vitriol at Mr. Macron, saying that with respect to attitudes on illegal immigration the French president had described Italians as “disgusting, cynics, and irreponsible.”