approved the new law for urban regeneration and building recovery. On 4 March 2018, Zingaretti was narrowly re-elected president with 1,018,736 votes (32.9%), defeating the centre-right candidate Stefano Parisi (31.2%) and the Five Star's Roberta Lombardi (27%). Despite the small margin of victory, Zingaretti's win was seen as a strong showing due to the poor electoral result of the centre-left coalition in the general election which was held on the same day. After the election defeat, the Democratic leader, Matteo Renzi, resigned from secretary, his deputy Maurizio Martina started functioning as acting secretary and a new leadership election was called for early 2019. On 7 July 2018, Nicola Zingaretti announced his intention to run as new party's leader. In August 2018, Zingaretti launched a political convention in support of his candidacy, named Piazza Grande ("Great Square"), which was held in Rome in October. Zingaretti's campaign was based on a social democratic platform, whose aim was to abandon the social liberal and centrist policies promoted by Matteo Renzi and to move the Democratic Party more on the left. The campaign's main themes were social justice and fight to economic inequality. In September 2018, the Regional Council of Lazio approved a law containing urgent vaccine prevention measures that reintroduced the mandatory vaccination, keeping the number of mandatory vaccines to 12 and not allowing those who have not been vaccinated to attend school. This law was introduced by the government of Paolo Gentiloni in early 2017 and treated to be abolish by Giulia Grillo, the new Minister of Health. On 1 December 2018, Zingaretti faced a motion of no confidence proposed by the centre-right coalition, which was rejected with votes 26 against and 22 in favor, with one no-vote from a Forza Italia member and three absents. Secretary of the Democratic Party On 3 March 2019, Zingaretti won the Democratic leadership election by a landslide, receiving 66% of the over 1.5 million votes cast and defeating Maurizio Martina and Roberto Giachetti. During his victory speech Zingaretti dedicated his victory to Greta Thunberg, a young Swedish activist against global warming and climate change. He was officially appointed by the National Assembly on 17 March 2019. On the same day, former Prime Minister Paolo Gentiloni was elected the party's new president. After a month, on 17 April, Zingaretti appointed Andrea Orlando and Paola De Micheli as his deputy secretaries. In the run-up to the 2019