Early career Dolor served as vice governor of the province for three terms from 2010 until 2019, under Governor Alfonso Umali. He started his political career in his youth as chairperson of
Sangguniang Kabataan of Barangay Adrialuna in
Naujan in 1992, And Later elected SK Provincial Federation President in 1996, thus becoming an Ex officio Member of the Sangguniang Panlalawigan of Oriental Mindoro.
Governor Dolor successfully ran for Governor of Oriental Mindoro in the
2019 gubernatorial elections. Running under the
PDP–Laban party, He garnered 213,312 votes besting rivals last-termer Second District Representative
Reynaldo Umali and Rodolfo Valencia who got 117,617 and 30,923 respectively. In 2025, he was re-elected for a third term defeating Joanna Valencia De Jesus, daughter of former Governor Rodolfo Valencia.
Flood control issue Dolor has been involved in large-scale river dredging projects in Oriental Mindoro—principally at the mouth of the Balete River in
Gloria — which he supported as part of a flood-mitigation and river-restoration program. The projects drew growing opposition in 2025 from the provincial board, church and civic groups, select city governments, and fisherfolk organizations, who questioned their environmental impact and transparency. On September 1, 2025, Dolor filed a
cyberlibel complaint against satirical page Follow The Trend Movement for its post on the issue. On September 8, 2025, Dolor testified before the
Senate Blue Ribbon Committee on the alleged large-scale corruption he found from the numerous flood control projects in Oriental Mindoro. He cited comparisons between the allotted budgets for flood control in Oriental Mindoro by the National Expenditure Program (NEP) and by the
General Appropriations Act, where the insertions to the NEP-provided budget of ₱12.77 million during the period of 2022 to 2025 reached a total of ₱17.82 million. == Personal life==