Matteo Salvini, head of Italy's Northern League, speaks during a television interview outside Palazzo Montecitorio, Italy's parliament building and office of the Chamber of Deputies, in Rome, Italy, on Tuesday, Dec. 6, 2016. President Sergio Mattarella on Monday evening asked Italy's Prime Minister Matteo Renzi to stay in his job long enough to push through a budget for 2017, potentially until Friday. Photographer: Alessia Pierdomenico/Bloomberg via Getty Images