well, evidently you impeach them.
On 3 December 2015, impeachment proceedings against Rousseff were officially accepted by the Chamber of Deputies. On 12 May 2016, the Senate of Brazil
temporarily suspended President Rousseff's powers and duties for up to
six months or until the Senate reaches a verdict: to remove her from
office if found guilty or to acquit her from the crimes charged. Vice President Michel Temer assumed her powers and duties as Acting President of Brazil during the suspension.
On 31 August 2016, the Senate voted 61–20 in favor of impeachment,
finding Rousseff guilty of breaking budgetary laws and removing her from