For the 2022 legislative election, Da Conceicao Carvalho was chosen as the RN candidate in Essonne's 2nd constituency, a more rural and right-leaning constituency than the rest of the department in the outskirts of Île-de-France. She came second to La France Insoumise (LFI) candidate Mathieu Hillaire in the first round but defeated him with 53.3% of the vote in the run-off to become Essonne's first RN deputy.[4]
In the 2024 French legislative election, Da Conceicao Carvalho came first in the first round, which then went to a trinagulaire against Hillaire and against Naïma Sifer of Horizons within the Ensemble coalition; the latter withdrew.[5] She won the run-off against Hillaire with 52.46% of the vote.[6]