For a brief, shining moment, CNN paused in its nonstop coverage of everything it loathes about President Trump for some actual “breaking news.” One of the network’s reporters had noticed that Congress was looking into malfeasance and political corruption at the Obama-era Department of Justice, FBI, and intelligence agencies. This is still news to most mainstream outlets.There are now three major congressional investigations, peeling away layers of political bias, unequal application of the law, and, perhaps even felonies by senior officials who may have leaked classified documents, obstructed justice, and violated Fourth Amendment guarantees against unreasonable search and seizure.These probes...