Malaysian Prime Minister Najib Razak unveiled a lavish election manifesto with cash benefits targeting rural ethnic Malays, his key voting bloc, as he faces an unprecedented challenge from a revived opposition led by his former mentor, Mahathir Mohamad. The 220-page election manifesto, which includes 364 pledges, was launched on Saturday, the day Parliament was dissolved to pave the way for national polls expected in early May. Najib has been dogged by a massive corruption scandal involving the 1MDB state fund, which is under investigation in the US and other countries for allegations of cross-border embezzlement and money laundering