(Bloomberg) -- Philippine President Ferdinand Marcos Jr.’s trust rating tumbled last month, with a notable decline in the southern Mindanao island, a stronghold for the clan of ex-leader Rodrigo Duterte who has had a public spat with the incumbent.

Marcos’ overall trust rating fell to 57% in March from 73% in December, according to survey results from pollster Pulse Asia Research Inc. His trust rating plummeted from 70% in December to 38% in Mindanao, Duterte’s bailiwick.

Feud Between Clans Emerges as Risk to One of Asia’s Growth Stars

Marcos and ex-President Duterte — father of Vice President Sara Duterte — has had public disagreements over various issues in the past months, at one point trading accusations of drug use.

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