In the 2024 Portuguese legislative election, Chega, under his leadership, received 18.1% of the vote, more than quadrupling its seat count to a final total of 50.

[13] He published two novels, Montenegro in 2008, and A Última Madrugada do Islão ("The Last Dawn of Islam") in 2009, both with significant elements of female submission and homoeroticism.

[14] The publication of A Última Madrugada do Islão, a novel about the death of Yasser Arafat, was suspended by the publishers, Chiado Editora, for its "incendiary potential", for its gratuitous references to Muhammad and the leaders of the Palestine Liberation Organization.

As a Portuguese civil servant, he was granted leave[23] from AT without pay since 2014 to teach and ultimately offer tax consultancy and advisory services in the private sector, and had also previously enjoyed the right to be absent from his workplace in the public sector due to his student-worker status as an international doctoral student until 2013.

[25][26] In the course of the same campaign, Ventura made several controversial statements about the romani community in the municipality of Loures,[27] having become the target of a criminal complaint presented by the opposing candidate from the Left Bloc, headed by Fabian Figueiredo.

In September 2020, he presented a proposal to decrease the number of deputies from 230 to 100, which was ruled unconstitutional by the Committee on Constitutional Affairs, Rights, Freedoms and Guarantees.

Ventura, later in a press conference at the Assembly of the Republic, stated that he would not pay the fine: "to limit the freedom of expression of a citizen, a deputy of the nation and a political leader".

[37][38][39] Ventura criticised the Minister of Justice, Francisca Van Dunem, for the release of prisoners to ease COVID-19 transmissions, saying that the measure was an "infamy".

[50] On 18 December 2020, Ventura handed 10,250 signatures of proponents to the Constitutional Court, as legally required to formalise his candidacy for Belém Palace.

[52] At the beginning of the electoral campaign, the president of the French National Rally party, Marine Le Pen, confirmed that she would go to Lisbon to support Ventura's presidential candidacy.

[53] In a televised debate against incumbent Marcelo Rebelo de Sousa, Ventura showed a photograph of the president in the Bairro da Jamaica, a poor and largely black neighborhood in Amora, Setúbal District, where there had been tensions with the police.

[54] In September 2021, a Portuguese court convicted Ventura for social segregation in the aftermath of these events related to Bairro da Jamaica.

[57] Ventura has expressed controversial views in the past, whilst the majority of international media refer to his ideology as being far-right.

[62] About António de Oliveira Salazar, Portuguese dictator during the Estado Novo regime, André Ventura said: "The Republic led by Dr. António de Oliveira Salazar, for most of the time, also didn't solve [the country's problems] and set us back a long way in various aspects.

[75] In June 2020, Ventura organised a counter-protest the day after anti-racist concentrations were announced in honour of actor Bruno Candé, victim of a premeditated homicide.

[5] Ventura signed the Madrid Charter, a document drafted by the Spanish party Vox that describes far left-wing groups as enemies of Ibero-America involved in a "criminal project" that are "under the umbrella of the Cuban regime".

[78] On 24 February 2022, Twitter permanently suspended Ventura's account for violating the rules of the social network regarding the "conduct of propagating hate".

[80] Changing and evolving the focus of his speech, Ventura has expressed views in which he says that he doesn't want immigrants unable to integrate and dedicated to a life of marginalization and economic deprivation for themselves and their children, perpetuating cycles of poverty and crime, and constraining the Portuguese welfare state, the national health service, the security forces, wages and housing in the country.

[87] Mário Rui Leal Pedras, a priest of the Lisbon Patriarchate in the churches of São Nicolau and Santa Maria Madalena, located in Lisbon's Baixa Pombalina, who celebrated the Catholic wedding of Ventura, is his confessor and spiritual director since when Ventura was still a university student.