Did Gorsuch just signal intent to defend congressional power and authority in future rulings?

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20. there were sly exploitations of relatively recent conservative doctrine by some of the majority

...Gorsuch cited the major questions doctrine, as it's known, which has been the bane of liberals on the Court, because, it's been used by conservatives to deny agencies like EPA from imposing regulations.

Gorsuch takes it further here, though, than other conservatives, in that he applies this to the President, not just regulators at agencies.

A likewise turn on a hook conservatives on the court have used to justify overturning Democratic initiatives:

The three liberal justices insisted here on a strict reading of the trade law Trump has used to impose his tariffs, recognizing that the law doesn't have language which gives him the power to unilaterally impose taxes (which everyone but Trump recognizes is the ultimate impact of his tariffs).