As a consequence of the 2016 constitutional referendum and of two different sentences of the Constitutional Court, the electoral laws for the two houses of the Italian Parliament lacked uniformity. In October 2017, the PD, AP, FI, the LN and minor parties agreed on a new electoral law, which was approved by the Chamber of Deputies with 375 votes in favour and 215 against and by the Senate with 214 votes against 61. The reform was opposed by the M5S, the MDP, SI, FdI and minor parties.