The bond market is driving the Trump administration crazy. Last week, the treasury secretary, Scott Bessent, announced that the government would sharply ramp up its purchase of treasury bonds, in an effort to raise their price and thus push down their yield, which amounts to the interest rate the government pays on its debt.It didn’t quite work as planned. Yields on treasurys fell after Bessent’s bond market intervention but soon bounced back. By Friday afternoon, the yield on the 10-year treasu...