He started his political career in his youth as chairperson of Sangguniang Kabataan.

In 2001, he was elected as board member for the 1st District of Oriental Mindoro, and served until 2004.

He ran for vice governor in 2004, only to lose to Arnan Panaligan.

[2] 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.