He took oath as the first and interim chief minister along with the rest of the members of the regional body before President Rodrigo Duterte on February 22, 2019.

The holder of the post appoints the heads of the Bangsamoro regional government's ministries, agencies, bureaus and other offices.

The chief minister could also formulate a platform that would need to be approved by the Bangsamoro Parliament and has the power to issue executive orders and other policies.

[4] The chief minister's power of appointment is codified in regional law through Bangsamoro Act No.

[4] The parliament is yet to hold an election with the region being led by an interim chief minister appointed by the president of the Philippines.