For the first time, a majority of Brazilians support impeaching President Jair Bolsonaro, according to a poll released on Saturday, as serious graft allegations related to vaccine procurement hit the right-wing leader’s already battered image. According to the survey by Datafolha, 54% of Brazilians support a proposed move by the country’s lower house to open impeachment proceedings against Bolsonaro, while 42% oppose it. In the last Datafolha survey on the issue, released in May, supporters and opponents of impeachment were essentially tied. In a separate Datafolha poll, released on Thursday, 51% of Brazilians said they disapproved of Bolsonaro, the highest figure since he took office in January 2019. In recent weeks, Brasilia has been rocked by allegations that federal officials solicited...