As the nation awaits the resolution of whether Vice President Sara Duterte's trial could proceed during the 20th Congress after it convenes in July, let's look back at the history and timeline of impeachment cases in the country.

With former president Rodrigo Duterte detained in ICC custody, legal uncertainties rose amid unprecedented conditions when he was elected mayor of Davao City in the May 12 midterm elections.

News headlines from May 15 used the words nullified, voided, reversed and remanded to refer to an April 30 ruling of the Court of Appeals in granting a petition for certiorari on a drug case in which former senator Leila de Lima had been acquitted.