Question: who are otso diretso senatorial candidates 2019?
Answer: On February 28, 2019, Otso Diretso candidates Gary Alejano, Samira Gutoc, Florin Hilbay, and Romulo Macalintal wrote a letter to the Commission on Elections (COMELEC), requesting to facilitate a debate with administration-supported party Hugpong ng Pagbabago.