CNBC: A Senate subcommittee has Big Tech in its crosshairs on the issue of “self-preferencing” of their own products. Sen. Amy Klobuchar, D-Minn., the chair of the Senate Judiciary subcommittee on antitrust, said today that she will soon introduce a major antitrust bill alongside the Judiciary Committee’s ranking member, Sen. Chuck Grassley R-Iowa. The American Innovation and Choice Online Act would prohibit dominant online platforms from engaging in discriminatory behavior. That could include wielding their gatekeeper power to disadvantage rivals or to give preference to their own products over others. The bill would have profound implications for companies like Amazon, Apple and Google, which all run their own marketplaces for products or information. Those companies have been accused of ranking their own products higher than rivals’ in an attempt to generate more profits for themselves.