For months, Sen. Elizabeth Warren of Massachusetts has made "big, structural change" the rallying cry of her presidential campaign. And when it comes to the tech sector, that has meant taking square aim at giant companies like Facebook — companies she says have become so large that they are stifling competition.

Warren rolled out a proposal to break up Facebook, Amazon and other tech giants in March. To ensure that tech workers got her message, her campaign paid for a billboard near a major transit station in San Francisco. In all capital letters, the billboard read: "Break Up Big Tech."

Advertisement
Advertisement