Former President Mauricio Macri supports the Base Law. He said that the law is "fundamental to starting a change" Macri left a harsh message to the opposition: he said that "they insist on maintaining their privileges" He added a direct message for the deputies, between those who propose a non-negotiable rejection of the project and those who want to introduce changes article by article.

"Today is a very important day because a fundamental law is going to be voted on to begin a change in Argentina," he said.