For 157 years, the number of justices on the nation’s highest court has remained at nine following the Judiciary Act of 1869. Although the number is not enshrined in the Constitution, it’s become the norm despite President Franklin D. Roosevelt’s unsuccessful attempt to pack the court in 1937. But House Minority Leader Hakeem Jeffries (NY-8) would change all that if American voters give him that power and hand both houses of Congress back to the Democrats in November. In fact, there’s no telling what he and his Dem fellow extremists would do, because, according to him, all options would be...