Candidates linked to Philippine ex-leader Rodrigo Duterte appear to have won election victories, including Duterte himself, despite him being detained for alleged crimes against humanity.

Former Philippine President Rodrigo Duterte was elected as mayor in his home city by a landslide, official results showed Tuesday, despite his detention by the International Criminal Court.

Here’s what to know about the crucial midterms and the rival dynasties at the heart of the Southeast Asian nation’s politics.