Grounds for impeachment include culpable violation of the Constitution, treason, bribery, graft and corruption, other high crimes, or betrayal of public trust.
The country’s most notable impeachment proceedings began in 2000 against then-President Joseph Estrada. Accused of plunder and corruption, Estrada’s Senate trial was aborted after prosecutors walked out due to the court’s refusal to open an envelope believed to contain critical evidence.
This triggered massive protests known as EDSA II, leading to Estrada’s ouster and eventual arrest. Though tried and convicted of plunder in 2007, he was later pardoned.
In 2011, another historic impeachment occurred — this time involving Chief Justice Renato Corona. He was impeached by the House of Representatives for failing to disclose his Statement of Assets, Liabilities and Net Worth (SALN). The Senate impeachment court found him guilty in 2012, marking the first time a chief magistrate was removed through this process.