President Trump’s two appointees to the U.S. Supreme Court — Neil Gorsuch and Brett Kavanaugh — were expected to help bring about a “conservative revolution” on the nation’s highest court. But in two out of three rulings by the court Tuesday, Gorsuch and Kavanaugh found themselves on opposing sides.

The two cases in which the justices did not agree involved an Indian tribe and Washington state taxes, and another involving maritime law.

Gorsuch, who was nominated by Trump in 2017 to fill the seat Senate Republicans held open for more than a year after Justice Antonin Scalia’s death in 2016, sided with the liberal justices in ruling that the Yakama Nation doesn’t have to pay a Washington state fuel tax. He cited an 1855 treaty that made a “handful of modest promises” to the tribe, including the right to move goods to market freely.

Yakama Nation Chairman JoDe Goudy praised the ruling. In a statement cited by NW News Network, he wrote: “Today marks a decision that reinforces the Yakama way of life, both in historical context as well as modern interpretation.”