Trump Is Remaking the Federal Judiciary at a Historic Rate | RealClearPolitics
As of late November, the U.S. Court of Appeals for the Eleventh Circuit was the third circuit court to flip from a majority of Democrat appointees to a majority of Republican appointees under President Trump (not counting the many courts that had an even split that have also tipped Republican). In an interview with Hugh Hewitt on Dec. 18, McConnell said, One of every four of the U.S. circuit judges in the country have been put on the bench in the last three years.
This is an astonishing figure when you consider the importance of the federal circuit court./ While the U.S. Supreme Court garners all the headlines, the overwhelming majority of federal court cases never make it there. Because the Supreme Court accepts around 1% of cases, the Court of Appeals divided into 13 circuit courts has the final say on matters of the law and Constitution.
And I would guess the average age of Trump judges is younger than that of any other (recent?) president. So there’s that too. Younger is better I would also guess because younger judges tend to be more principled (or you could say ideological) than their older colleagues.