In the process, Trump's critics are condemning his denunciation of "flipping," the process by which federal prosecutors offer a sweet deal to criminal defendants in return for testifying against a "higher-up" who the feds are also prosecuting. The press and the anti-Trumpsters say that such a practice is part of the "rule of law" and essential to the proper administration of justice.
Nothing could be further from the truth. Whatever else might be said about Trump, he is absolutely right on this point. The process of offering sweetheart deals to people in return for their "cooperation" to get someone else convicted has long been one of the most corrupt aspects of the federal criminal-justice system, especially as part of the federal government's much-vaunted (and much-failed) war on drugs.
Suppose a federal criminal defendant contacts a prospective witness in a case and offers him $50,000 in return for his "cooperation" in his upcoming trial. The money will be paid as soon as the trial is over. The defendant makes it clear that he wants the witness to "tell the truth" but that his "cooperation" when he testifies at trial would be greatly appreciated.