As it was with George W. Bush and every other president who preceded him, Barack Obama made policy decisions I found troubling.

Obama once described the driving principle of his foreign policy as little more than “don’t do stupid s—.” That reflexive reaction to Bush’s military adventurism led to U.S. inaction in the face of some 500,000 Syrian deaths and the greatest refugee crisis since World War II. Domestically, Obama failed to pass a significant piece of legislation during his final six years in office.

And yet, 100 years from now, Obama’s presidency will be hailed as the most transformative of our lifetimes and Donald Trump’s will be viewed with the same scorn that followed the Dred Scott decision. Like that pre-Civil War Supreme Court case, Trump will forever be condemned as a racial reprobate whose words and actions inspired white supremacists and neo-Nazis.