Malaysia protesters face uphill battle to dislodge Najib

Protesters hold up a placard during a Bersih (Clean) rally as they call for the resignation of Prime Minister Najib Razak on Aug. 30 in Kuala Lumpur. © Getty Images

KUALA LUMPUR (Dow Jones) -- Tens of thousands of protesters took to the streets of Malaysia's capital to rally against Prime Minister Najib Razak's management of the economy and the debt problems at a state investment fund.