John Roberts is no longer the leader of his own court. Who, then, controls it?

Chief justice no longer sits in supreme court’s ideological center and has lost the power to cast the deciding vote in any ruling

When Chief Justice John Roberts delivered the decisive vote in 2012 that upheld Barack Obama’s signature achievement in office, the Affordable Care Act, he reportedly did so following after a month-long campaign by fellow conservatives to try to get him to join their side.

His decision to side with liberal colleagues inspired ire on the right but it ...