[4] In a book entitled The Conquerors (Les Conquérantes) launched on 18 November 2013, the French journalist Christine Clerc revealed that Samuel Maréchal is not her biological father.

[3][17][22][25] In the first round of the presidential elections, Marine Le Pen had achieved her highest national performance in Vaucluse (27.03%)[26] and most notably in this constituency (31.50%) where she outdistanced the UMP incumbent president Nicolas Sarkozy (27.60%).

[3][22][25] In the run-off on 17 June 2012, she defeated the incumbent MP Jean-Michel Ferrand, who had continuously sat in the National Assembly for twenty-six years (Rally for the Republic: 1986–2002, Union for a Popular Movement: 2002–2012).

[33] During a press conference held on 30 October 2013, she officially announced her appearance as a fellow candidate on a municipal list at Sorgues, a town of 18,000 inhabitants located to the north of Avignon in the western part of her constituency.

[34][35] She decided to figure in tenth position on this local list led by Gérard Gérent, then an independent councillor belonging to the UMP municipal majority and a former deputy mayor of Sorgues.

[44] Socialist candidate Christophe Castaner then withdrew, to avoid splitting the vote for The Republicans' mayor of Nice, Christian Estrosi.

[46] She received the best result for a National Front candidate, Marine Le Pen in comparison obtaining 42% in the Nord-Pas-de-Calais-Picardie region.

[54] Maréchal signed the Madrid Charter, a document drafted by the official thinktank associated with the far-right Spanish party Vox, that expresses concerns about certain left-wing ideologies in the Ibero-American region.

The Charter specifically targets what it describes as "totalitarian regimes of communist inspiration" and initiatives like the São Paulo Forum and the Puebla Group.

It claims these entities are part of an "ideological and criminal project" that aims to "subjugate the freedoms and rights of nations" and "destabilize liberal democracies and the rule of law," operating "under the umbrella of the Cuban regime".

On 12 June 2024, she was expelled from Reconquête by Zemmour after she called on French citizens to vote for National Rally candidates in the upcoming 2024 legislative election.

[66] Along with Gilbert Collard and other FN senior executives, she took part in the mass demonstrations against same-sex marriage organized in Paris by La Manif pour tous movement in the first half of the year 2013.

"[67] Academic Cécile Alduy described Maréchal as a "paradoxical character" who dresses and speaks in a modern way while promoting social conservatism.

[42] Conservative American former vice presidential candidate Sarah Palin praised Maréchal-Le Pen for her societal beliefs, and compared her to Joan of Arc.

[68] Former Counselor to the President and former executive chair of Breitbart News Steve Bannon also praised her, referring to her as "the new rising star"; afterwards Maréchal Le-Pen said on Twitter that she was willing to work with him.

[72] On 22 January 2013, she was present in the Reichstag at the commemoration of the fiftieth anniversary of the signing of the Élysée Treaty by French President Charles de Gaulle and German Chancellor Konrad Adenauer.

[73] In a written statement, she said that the treaty was originally based on the cooperation and partnership between two sovereign states and denounced the "forced march towards a German federal Europe".

[75] On this occasion, she explained: "It is important that a front of patriotic and euro-critical parties form in sight of European elections, which is the case, and get some good results in order to lead resistance to Euro and globalism.

"[76] Initially, Maréchal supported recognition of Palestinian statehood, but agreed to abstain from a vote on the issue in 2014, following discussions with the FN's executive board.

[88] In a written parliamentary question addressed in May 2013 to Valérie Fourneyron, Minister of Sports, Youth Affairs, Popular Education and Community Life, Maréchal drew her attention to the poor treatment rugby league receives in France from the government and the media, regretting the banning of this sport during the Vichy regime.

[4][91][92] After it had become a viral video,[4] Maréchal explained it was a reference to Michel Onfray, who had called Valls a "crétin" when the Prime Minister accused him of "losing his bearings.