With the speaker of Brazil's lower house of congress introducing impeachment proceedings against President Dilma Rousseff, here's what comes next:
--A special commission of 66 members of the House of Deputies, with representatives from all political parties, will be formed to decide whether impeachment proceedings should go before the full lower house.
--If advanced by the commission, the impeachment measure would be debated and voted on by the House of Deputies.
--Impeachment would require support from two-thirds, or 342 members, of the lower house. If that happened, Rousseff would be replaced for six months by her vice president while the Senate considered whether she should be permanently removed as president.
--Permanent removal would require the support of two-thirds of senators.