The vast Trump litigation, sure to define the Supreme Court over the next four years, has already exposed Justice Ketanji Brown Jackson’s resistance.

In a scathing dissent, Jackson voiced her disapproval of the court’s Monday decision to strike down U.S. District Court Judge James Boasberg’s injunction pausing deportations under the AEA, which was used last month to expedite the deportation of more than 100 alleged gang members to a prison in El Salvador notorious for human rights abuses.

The decision is a victory for Trump and setback for federal judges who sought to check the check the president’s power.

The Supreme Court exercises power not only in how it decides cases but in which cases it chooses to decide. We were reminded of this reality by a new dissent from Justice Sonia Sotomayor, joined by Justice Ketanji Brown Jackson.

The Supreme Court on Friday afternoon put on hold an order by a federal judge in Massachusetts that would have required the Department of Education to reinstate more than $65 million in grants that it terminated in February because they funded programs that included diversity,