The now-former Justice Minister Sergio Moro was perhaps the most influential figure in Brazilian politics in the 2010s. His actions helped impeach President Dilma Rousseff, imprison ex-President Luiz Inácio Lula da Silva, and shield a third former head of state — Fernando Henrique Cardoso — from investigation.
Now, after resigning from Jair Bolsonaro’s cabinet on Friday, accusing his boss of meddling in the Federal Police, he may trigger the downfall of yet another president.
Without Mr. Moro’s help in imprisoning Lula — who was leading the polls at the time — it is likely that Mr. Bolsonaro would have never been elected. And without the political clout provided by Mr. Moro’s presence in his cabinet, President Bolsonaro might not have survived his chaotic first year in office.