Three Brazilian senators formally accused President Jair Bolsonaro of malfeasance before the Supreme Court Monday over allegations he failed to have a top ally investigated over suspicions of massive corruption in the purchase of Covid-19 vaccines. The opposition senators include Randolfe Rodrigues, the deputy chair of a commission investigating the administration's pandemic response, which last week uncovered explosive accusations that Bolsonaro knew about suspected corruption in the deal for Indian-made Covaxin and failed to intervene. A criminal case against Bolsonaro before the Supreme Court could see him removed from office, though Prosecutor General Augusto Aras, an ally, would have to bring charges. bur-jhb/sst