 Other than his advocacies for the people of the 2nd District of Cavite, Gilbert is also a strong advocate for population management.On January 23, 2008, former Senate President Ernesto Maceda, chairman emeritus of UNO announced that United Opposition spokesman Adel Tamano, former Cavite congressman Gilbert Remulla, incumbent Bukidnon congressman Teofisto Guingona III, incumbent Senators Jinggoy Estrada and Jamby Madrigal-Valade are the 2010 senatorial bets of the opposition and "vice presidential materials.”

He ran for senator under Nacionalista Party in the May 10, 2010 Senatorial election but lost.In 2013 he is running again for congressman, but this time in the 7th district due to his brother Boying is term limited and he ran for mayor of Tagaytay, under the Nacionalista Party, Lakas-CMD and the United Nationalist Alliance.