https://www.cnet.com/news/tim-cook-says-keep-apple-out-of-tech-breakup-talk/

The suggestion that tech giants need to be broken up was floated by Sen. Elizabeth Warren in March. The Democratic presidential candidate said tech companies such as Apple, Amazon, Google and Facebook have too much influence over our lives and would like to see them broken up.

In Apple's case, Warren says Apple's App Store gives the company too much of a competitive advantage.