Subcommittee Chairman David Cicilline has been looking in to allegations by critics that the companies have hurt competitors and consumers with their business practices
Republicans and Democrats alike on the House Judiciary Committee, which is investigating the market power and behavior of the big 4 companies
Facebook confirmed Monday it was not invited to the White House event. Twitter offered no comment but several media reports said it too was excluded from the event.
Call off the antitrust watchdogs