In some ways the executive branch has gained power, in other ways SCOTUS has gutted it through the novel "major questions" doctrine to peel power away from the executive under the guise of handing it back to the gridlocked legislature. For example, see the recent overturning of Chevron in Loper.
Sure, the executive has a lot of power to exercise military power without needing Congressional approval and minimal oversight. The courts have been happy to help expand and uphold that power. But power to regulate industry and other internal questions has generally been eroded since the 80s, and in accelerated fashion with Trump's further entrenchment of a more extreme right-wing ideology on the court.
Sure, the executive has a lot of power to exercise military power without needing Congressional approval and minimal oversight. The courts have been happy to help expand and uphold that power. But power to regulate industry and other internal questions has generally been eroded since the 80s, and in accelerated fashion with Trump's further entrenchment of a more extreme right-wing ideology on the court.