Son (hence Filho) of former president of the Brazilian Republic João Goulart and Dona Maria Thereza, he lived his childhood and adolescence in exile in Uruguay with his parents.

[11] This led the Goulart family to raise a lawsuit for moral, property and image damages against the United States, with the desire to eventually take the case to the World Court.

[12] This action was an appeal after the federal judge of the 10th Circuit Court of Rio de Janeiro extinguished the case, under the interpretation that it was an act of empire.

[11] He was launched by the Free Fatherland Party (PPL) as a candidate for the presidency of Brazil for the 2018 elections, with Léo da Silva Alves as his running mate.

[18] In December 2018, since it did not reach that year's election threshold, Goulart Filho's PPL joined the Communist Party of Brazil (PCdoB).