Several times in recent weeks I’ve found myself in conversations with liberals who shake their heads sadly and express their disappointment with President Obama. Why? I suspect that they’re being influenced, often without realizing it, by the prevailing media narrative.

The truth is that these days much of the commentary you see on the Obama administration — and a lot of the reporting too — emphasizes the negative: the contrast between the extravagant hopes of 2008 and the prosaic realities of political trench warfare, the troubles at the Department of Veterans Affairs, the mess in Iraq, and so on. The accepted thing, it seems, is to portray Mr. Obama as floundering, his presidency as troubled if not failed.

But this is all wrong. You should judge leaders by their achievements, not their press, and in terms of policy substance Mr. Obama is having a seriously good year. In fact, there’s a very good chance that 2014 will go down in the record books as one of those years when America took a major turn in the right direction.

First, health reform is now a reality — and despite a shambolic start, it’s looking like a big success story. Remember how nobody was going to sign up? First-year enrollments came in above projections. Remember how people who signed up weren’t actually going to pay their premiums? The vast majority have.