Liberals love to insist they're on the "right side of history," and their confidence crests in the liberal dominance among historians. Just as the liberal media dominate our evaluation of day-to-day developments, liberals count on their historians to dominate our evaluation of the decades behind us. It's not just historians but our taxpayer-funded storytellers, like the insufferable PBS documentarian Ken Burns. On the day before President-elect Joe Biden's inauguration, NPR's "Morning Edition" presented him as an American treasure with no partisan bias. So, skip over the propaganda film on Ted Kennedy he made for the 2008 Democratic National Convention, which...