Five years after a Saudi hit squad murdered, dismembered, and disappeared the journalist Jamal Khashoggi, Saudi Arabia has won. It was President Donald Trump and son-in-law Jared Kushner who embraced Saudi Arabia after the killing and then set the conditions for the ongoing Saudi victory over human rights. But Joe Biden also deserves blame. On the campaign trail, candidate Biden had pledged to hold Saudi Crown Prince Mohammed bin Salman to account, saying he would make Saudi Arabia a “pariah.” Initially, Biden held a hard line, but within a year that evaporated. He traveled to the kingdom in summer 2022...