The Senate Blue Ribbon Committee, chaired by Senator Pia Cayetano, has scheduled a hearing for Thursday, June 4, 2026, to investigate allegations surrounding flood control projects. Former Speaker Martin Romualdez has been formally invited, along with 18 individuals claiming to be former Philippine Marines who allegedly delivered kickbacks, and former assistant engineer Brice Hernandez, who previously implicated lawmakers. Romualdez has consistently denied involvement in the alleged flood control scandal and budget insertions. The committee aims to gather information in aid of legislation and public accountability.