The 'Trump whisperer' keeps his White House and Beijing access as Apple navigates tariffs and a $4.6 trillion market cap.

After 15 years, Tim Cook hands Apple to John Ternus - here's how he turned a $350B company into a $4.6T juggernaut.

After 14 years leading Apple to a $3 trillion valuation, Tim Cook signs off with a heartfelt note. What does the transition mean for investors and the tech industry?