Article III, Sec. 2 of the Constitution provides Congress with the power to create exceptions to federal courts' jurisdiction. 

Since district courts are taking it upon themselves to commandeer core presidential executive powers under Article II of the Constitution, Congress could use its own power to limit the inferior courts’ jurisdiction to, for example, exclude any cases on the exercise of core Article II presidential executive powers including the Commander-in-Chief clause and directing military actions, the discourse with foreign nations including but not limited to treaty and trade matters, and appointments and firings, while still leaving a direct route to the Supreme Court when needed. 

This would apply to all future presidents, Democrats and Republicans alike. Or just eliminate courts that keep getting overturned.

These nationwide injunctions have gone far enough. If lower courts’ will not limit themselves to only justiciable questions, then Congress can define what those are for them by establishing what are the long agreed-upon political questions that courts should not be involved with. They can also reduce the number of courts. 

You know what to do! Let’s urge Congress to limit the jurisdiction of district and circuit courts to end these nationwide injunctions.

Congress has a voice in this process, too. This wouldn’t be necessary if long-established precedents on the separation of powers were being followed by courts. They clearly are not.