You know how you weaken the court? Pardon people so prosecutions don't happen (nothing gets to the court), and reduce laws so the court doesn't have the legal justification to decide.
After that, pass a constitutional amendment and repeal Marbury v. Madison.
Or just go full-on "Justice Marshall has made his decision; now let him enforce it", totally ignore all Court rulings you don't like, and make Congress impeach/remove you from office for doing so.
You know how you weaken the court? Pardon people so prosecutions don't happen (nothing gets to the court), and reduce laws so the court doesn't have the legal justification to decide.
After that, pass a constitutional amendment and repeal Marbury v. Madison.
Or just go full-on "Justice Marshall has made his decision; now let him enforce it", totally ignore all Court rulings you don't like, and make Congress impeach/remove you from office for doing so.