Donald Trump Jr. Photo: Scott Sonner/AP/REX/Shutterstock

Last year, Donald Trump Jr. testified that he never informed his father of a meeting with Russian officials promising “dirt” on Hillary Clinton. It seemed hard to believe that the ne’er-do-well son would neglect to seek credit for his expected campaign coup from the father whose approval he so obviously craves. And now it seems that Robert Mueller has obtained proof that it is not in fact true. The Trump family lies all the time, of course, but doing it under oath is a crime.

Two days ago, Gabriel Sherman reported that White House officials are concerned about Donald Jr. “I’m very worried about Don Jr.,” a former West Wing official told Sherman, who fears Mueller will be able to prove perjury. Deep in a report about Trump’s 2020 campaign plans, Politico drops the news this morning that Trump Jr. “has told friends in recent weeks that he believes he could be indicted.”

If it’s what you’re saying, we love it.

The details of the expected indictment remain to be seen. But if Trump Jr. did lie under oath, the obvious question is why. He had a lawyer, who presumably informed him of the dangers of perjury. Why take the risk of perjury to deny having informed his father about a meeting with Russian officials if the contacts produced absolutely nothing?