Vincenzo De Luca, the Democratic Party (PD) candidate for president of the southern Campania region, leaves the polling booth to cast his ballot at a polling station in Naples, May 31, 2015. Sunday's ballots in seven regions and more than 1,000 municipalities, which follow a bruising series of parliamentary battles over Italian Prime Minister Matteo Renzi's reform agenda, will be his biggest test since a triumph in last year's European elections. REUTERS/Ciro De Luca