Sablan was a Bureau of Environmental and Coastal Quality laboratory manager at the time of his first election.

[5] In January 2021, at the start of the 22nd Commonwealth Legislature, Sablan was elected Floor Leader of the Senate to succeed Justo Songao Quitugua.

[6] Later that month, he was unanimously elected the chairman of the 22nd Saipan and Northern Islands Legislative Delegation.

[7] He was an independent aligned with the Republican-led majority[7] until joining the Republican Party in July 2021.

[8] Sablan was a candidate for lieutenant governor of the Northern Mariana Islands in the 2022 gubernatorial election.