Tim Cook faces a tough balancing act between Washington and Beijing to protect Apple's supply chain in China.
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- For years, Tim Cook has overseen the development of Apple's supply chain in China.
- The risk of tariffs on China from Donald Trump requires a complex balancing act from Cook.
- Jamie MacEwan, an analyst, estimates that "almost half of Apple's revenue is exposed to China."
Tim Cook faces an unenviable task this year: keeping...