The U.S.’s “rebalancing” toward Asia has two main pillars: being a counterweight to China and securing a free-trade deal called the Trans-Pacific Partnership. If Washington is to succeed on both fronts, it needs as many friends in the region as it can win. The U.S.’s newest ally is Malaysia, this year’s chair of the 10-member Association of Southeast Nation, collectively a growing market, and, on the surface, a modern, democratic, Muslim country.