The group at the center of the antitrust storm

A small liberal think tank has spent years urging Washington to crack down on the United States’ biggest tech companies — a lonely crusade that barely registered with the political establishment. Now the Open Markets Institute has become one of the most influential drivers of Democratic politics in the fight to rein in Facebook, Amazon and Google, seeing its ideas embraced by Elizabeth Warren and forcing presidential candidates like Bernie Sanders, Cory Booker and Joe Biden to take a side.