Italy has become synonymous with political turbulence, with the collapse of Prime Minister Mario Draghi’s ruling alliance the latest example of how tenuous a hold its leaders have on power. Elections are scheduled for Sept. 25 — the first to be held since constitutional changes were adopted that shrank the size of the two parliamentary chambers. A right-wing coalition appears on track for a landslide victory in the vote, which comes as the euro area’s third-largest economy — and one of its mos