Facebook’s decision to stop partnering with “fact-checking” organizations has renewed the argument over how well these organizations perform the job they claim to do. Over the years, my colleagues and I have had to write quite a lot to detangle the actual facts from various groups’ checks. Politifact has been a particular offender against accuracy and good judgment. Here are a few of my own attempts to correct it:

Politifact pretends JD Vance said something he didn’t say and then fact-checks that.

Politifact misrepresents a Republican health-care bill and what the Congressional Budget Office said about it.

Politifact mistakenly fact-checks Kellyanne Conway, too, on health care.

Politifact whitewashes the Democrats’ position on abortions late in pregnancy.

Politifact keeps up the whitewashing, this time getting the New York Times to repeat a false claim.

Even if Politifact had gotten all of these matters right, it would deserve criticism for the selectivity of its targeting of politicians. (When President Biden absurdly claimed in last year’s State of the Union address that he had inherited an economy “on the brink,” it did no fact-check.) But it can’t even be counted on to get the facts right when it does purport to check them.