Broadly, the Twitter feeds of major news outlets did a better job of preventing the flow of misinformation in the period we studied over the summer than they did earlier this year. Of the 32 accounts we reviewed, 22 showed an improved rate of disputing Trump falsehoods. The increases for improving outlets were often drastic: Six outlets saw their dispute rates increase by more than 40 percentage points, and 12 by more than 20 percentage points.

But many outlets that showed improvement did so from a particularly low floor, and thus they’re still regularly allowing Trump’s falsehoods to reach their audiences.

The Twitter feed of The Hill, which has 3.5 million followers, remains the worst offender we reviewed, producing 48% of the tweets that pushed Trump’s misinformation without disputing it over the course of the second study. It promoted Trump falsehoods unimpeded 155 times -- more than seven times per day. The Hill actually improved the rate at which it disputed false Trump claims, from a miniscule 13% of the time to a still-low 30% of the time. But the feed is the biggest source of passive misinformation we reviewed because it generates many more tweets about Trump’s comments than any other outlet -- eight times the total of the next most-prolific feed. It frequently tweets Trump quotes without context, and often resends the same tweet over and over again, strengthening the misinformation through repetition.

ABC News’ Twitter feeds -- @ABC, @ABCPolitics, @ABCWorldNews, and @ThisWeekABC -- also stood out. They collectively sent 300 tweets about Trump quotes, disputing falsehoods in 50 of the 97 tweets about false claims. That rate of disputing Trump falsehoods 52% of the time was a sizable increase from the outlet’s 29% rate in our original study.

ABC News’ main Twitter feed (14.7 million followers) disputed Trump’s falsehoods 45% of the time -- an improvement from 26% in the first study -- but still sent 12 tweets amplifying Trump’s falsehoods without disputing them.

The network’s politics feed (814,600 followers) disputed the president’s misinformation 55% of the time -- up from 36% in the first study -- but still sent 14 tweets promoting false or misleading Trump claims without disputing them..

The feed for its evening news broadcast, World News Tonight (1.4 million followers), disputed Trump’s misinformation 38% of the time -- a big change from our first study, when it did not dispute a single falsehood -- while still sending 13 tweets promoting Trump’s false or misleading claims without disputing them.

The feed for its Sunday morning political talk show, This Week (182,000 followers), disputed Trump’s false or misleading claims 65% of the time, up from 36% in the initial study, but still sent eight tweets passing along Trump’s false claims without disputing them.

Likewise, some of CBS News’ feeds improved greatly from the previous study while still amplifying misinformation most of the time. The network’s general news feed (7 million followers) disputed Trump’s misinformation 12% of the time, up from 8% in the first period, while amplifying Trump’s misinformation without dispute 15 times. The feed for CBS Evening News (317,100 followers) disputed Trump’s falsehoods 47% of the time, up from 28%, while passing them along uncorrected nine times.

NBC’s feeds were somewhat more effective in disputing Trump’s misinformation but still show room for improvement. The network’s main news feed (6.9 million followers) disputed misinformation in 13 of 18 tweets for a rate of 72%, up from 48%. Its politics feed (531,400 followers) did so in nine of 12 tweets for a rate of 75%, up from 57%. And the feed for its nightly news show (992,800 followers) did so in three of five tweets, a rate of 60%, up from 11%. MSNBC’s feed (2.8 million followers) included disputes in 22 of 29 tweets about false Trump claims, or 76% of the time, an increase from 45% in the first study.