[2][3] Darell is one of many Sabah politicians who fight for the state rights as enshrined in the Malaysia Agreement,[4] and he constantly urges the government to provide a definite solution to the problem of illegal immigrants in the state, especially the problems caused by Project IC with the huge influx of Filipino refugees, and to set to rest the North Borneo dispute once and for all.

[5][6] He has rejected controversial remarks made towards other minority groups by a prominent minister in the cabinet, which was echoed by Baru Bian of the People's Justice Party (PKR).

On 24 February 2020, Darell lost his position after the PH government collapsed due to its loss of majority support in the Parliament.

In the 2013 general election, Darell made his electoral debut after being nominated by PR to contest for the Penampang federal seat.

He lost the seat and was not reelected as the Penampang MP for the third term after losing to Ewon Benedick of PH by a minority of 14,410 votes.