Malaysia’s Johor election has opened a new front in the country’s long-running racial politics, after former prime minister Mahathir Mohamad and Islamist party PAS urged voters to put “Malay-Muslim political power” ahead of party loyalty in one of the country’s most closely watched state polls.The southern state, which borders Singapore and sits at the centre of Malaysia’s cross-border growth plans, is also a stronghold for the United Malays National Organisation.The Barisan Nasional (BN)...