Dy entered politics when he was councilor in
Alicia, Isabela from 2007 to 2010. In 2010, Dy was elected as vice mayor of Alicia, Isabela until 2013. In 2013, Dy was elected as mayor of Alicia, Isabela where he served for two terms. In
2019, Dy was elected as representative for
third district of
Isabela after he succeeded his father. In 2020, Dy was one of the 70 representatives who voted to permanently
deny the renewal of broadcasting franchise of television network
ABS-CBN. ==Personal life==