>> It's taken 2,500 years, but Rome has finally chosen its first female mayor. Virginia Raggi winning 67% of the vote in a run-off election. It's a thumping victory for the insurgent, Five-Star Party which also saw a shock win in Turin. Reuters Rome Correspondent, Isla Binnie. The mayoral votes in Rome and Turin are a huge breakthrough for the Five Star Movement, partly because they've swept away the prime minister's candidates for mayors in both of those cities.
And partly, because they're being given the chance to show whether they can govern day-to-day in these cities. And in the case of Rome that's a particularly daunting task because Rome is famous for its bureaucracy and there's an ongoing corruption trial going on.>> The result's a big setback for Prime Minister Mateo Renzi and his ruling coalition.
They cast a cloud over his chances for winning the do-or-die October referendum on constitutional reform.>> Renzi has insisted that the local votes have no bearing on his government, but the risk is that he could struggle to rally popular support behind the referendum that he's called for October.
Already within his own party there are divisions about the proposal that he's put to this popular vote, and lots of the opposition is firmly opposed to it.>> Renzi has said he will step down if he does loose. If that means fresh elections, it just might be another big opportunity for the Five Star movement.