[11] The Office of Economic Crime and Money Laundering responded by making an official complaint, with a federal judge, ordering the seizure from his account of 8 million pesos.

Under his third tenure and in the midst of the COVID-19 pandemic, in July 2020 the municipality created a non-essential business economic program, in order to help the barred businesses that maintain permanent security under the Social Preventive Act.

They contended that his candidacy violated article 97 of the Buenos Aires City constitution, which states that in order to be elected, among other things, the candidate must “have a routine and permanent residence in the city no less than five years prior to the election date."

However, the electoral court said that documents provided by Macri’s lawyers gave sufficient proof of his residency in two city addresses between 1981 and 2006 as well as voting records and allowed him to run.

[16] He won the PASO on 13 August 2023 with 29% of the votes, one percent more than his challenger Martín Lousteau of Radical Civic Union, earning the endorsement of Juntos por el Cambio.

Macri said during his victory speech at Juntos por el Cambio headquarters after the first round results were announced; “We feel great joy.”[3] Javier Milei of La Libertad Avanza, who came in second at the presidential election and advanced to the runoff, endorsed Macri after the first-round results.

Days later, Santoro withdrew, stating that "A realistic assessment of these electoral results […] lead us to believe that it would be unwise to force a run-off", meaning Macri was automatically elected Chief of Government of Buenos Aires, succeeding Larreta.

In his free time, he watches soccer, is a Club Atlético River Plate fan and is passionate about cooking.