The new federal gun charges against Hunter Biden set up a constitutional challenge that will pit him against his father, who has steadfastly defended the firearm regulations that his son violated. Several federal courts have deemed the federal ban on gun possession by illegal drug users inconsistent with the Second Amendment, and the president's son is likely to challenge the case against him on the same grounds.

The indictment that David Weiss, the U.S. attorney for Delaware, unveiled last Thursday also vividly illustrates the penalty that criminal defendants pay for insisting on their Sixth Amendment right to a trial by jury. And it provides a window into the wildly uneven enforcement of federal gun laws that prescribe draconian penalties for conduct that violates no one's rights.