"I am announcing the reform of the Spanish Constitution to cancel personal privileges in Spain. We want to reach a consensus," Sanchez said.
The Prime Minister addressed the high level of protection from the legal system that Spanish MPs enjoy, particularly because it allows them to avoid corruption charges.
He also mentioned that the 2019 budget proposal would be presented before parliament between November and December.
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A total of 250,000 people, including 232,000 law enforcement officials, enjoy judicial privileges in Spain, meaning that in case of a lawsuit, their cases are considered only by high courts.
Earlier this year, Spain's People's Party, led by the previous PM Mariano Rajoy, was fined by Spain's High Court for its involvement in the "corruption scheme," while several officials of the party were found guilty of embezzlement, tax evasion, and other offenses. The case led to a no-confidence vote in the parliament, which made Rajoy resign and put Sanchez in power.