The premature fall of Mario Draghi’s government threatens to unravel Europe’s united front against President Putin, with one potential successor having expressed sympathy in the past for the Kremlin and the other an old ally of Viktor Orban, the populist prime minister of Hungary. The collapse triggered snap elections, scheduled for September 25. Draghi, 74, smiled and appeared to fight back tears as his ministers gave him a standing ovation. About two thirds of the members of the lower house of parliament joined in as they sent him on his way to present his resignation to Sergio Mattarella, the president,
