“Obamacare, unfortunately, will explode,” President Donald Trump said on Friday afternoon after House Republicans pulled their bill to repeal and replace the Affordable Care Act, a stunning defeat seven long years—and 18 sudden days—in the making. A glum House Speaker Paul Ryan, the architect of the doomed bill, was forced to acknowledge “Obamacare is the law of the land,” but likewise warned that the current system is unsustainable.