Battle for the bird

Bloomberg journalist Kurt Wagner takes you inside Twitter's everchanging headquarters, charting its rise from flippant 140-character posts to one of the world's most consequential tech companies. From Jack Dorsey's triumphant return as CEO in 2015 to the rise and fall of @RealDonaldTrump to the contentious $44 billion sale to Elon Musk, 'Battle for the Bird' exposes the messy reality and relentless challenges that come with building a global social network.