The week that Donald Trump was arrested in New York, less than a mile away from the courthouse, Hunter Biden was all smiles as he checked in on his latest art exhibition in Soho, at the George Berges Gallery, where his paintings reportedly sell for as much as $500,000 apiece to persons unknown. The first son seemed untroubled by the ongoing investigations into the millions he was paid by China in return for leveraging the power of his father’s vice presidency around the world. As his wife Melissa Cohen flashed shopping bags from nearby boutiques, Hunter was positively cocky, posing...