What began as a love affair is now a relationship on the rocks. This week on Politics with Amy Walter, a look at the relationship between Democrats and big tech giants like Amazon, Facebook, and Google. 

When it comes to big tech, the conversation has shifted from if they should be regulated to how and by whom. For a long time, these tech giants grew quickly and quietly beyond what many of us could’ve imagined. As a result, incredible wealth and power started to concentrate in Silicon Valley, largely unchecked by Congress.

Tim Wu, the author of The Curse of Bigness and a professor at Columbia University, explains how big tech companies became embedded in the social and economic fabric of our country. Senator Mark Warner is one of a growing number of Democrats who are critical of how much power big tech has amassed, and he shares his ideas on how to rein them in on today's show. Representative Ro Khanna, the Democrat who represents Silicon Valley in Congress, walks us through the adversarial nature of the relationship between Silicon Valley and Washington, D.C.

Plus, Cecilia Kang, a tech reporter at the New York Times, gives an update on the antitrust investigations going on. Finally, journalist and author Charles Duhigg explains the spectacular growth of Amazon, from its early days as an online retailer to the tech giant it is today.