Malaysians go to the polls on Wednesday, and in a normal democracy the ruling coalition of Prime Minister Najib Razak would lose in a rout amid scandals and widespread defections. But the latest polling suggests the opposition in this important Southeast Asian nation will again win the popular vote but fall short of a parliamentary majority.
This would be a repeat of the 2013 election, after which Mr. Najib carried on as Prime Minister and the leader of the ruling United Malays National Organization, or UMNO. The result would...