https://phys.org/news/2019-03-warren-tech-giants-power-breakup.html

As president, Warren said she would pick regulators who would seek to break up what she called "anti-competitive mergers" such as Facebook's recent purchase of Instagram and Amazon's acquisition of Whole Foods.

She made the pitch before a town hall appearance later in the day in the New York City neighborhood where Amazon recently scrapped plans to open a new headquarters.