Robert Mueller is certainly thorough. The special counsel makes clear across the 448 pages of his report released Thursday that he and his band of prosecutors left no entrail unexamined in their two-year dissection of President Trump. Those who demanded this may not like the conclusions, but they can’t say Mr. Mueller didn’t hunt down every potential crime.

The report exposes some Trumpian excesses and lies, but it also shows that, on the most important issue and the charge that started it all, Mr. Trump has been telling the truth. He and his campaign did not conspire or coordinate with Russians to steal the 2016 election. Try as he did to find a crime regarding Russia or obstruction of justice, Mr. Mueller found nothing to prosecute.

The details validate the four-page public summary of the report’s conclusions that Attorney General William Barr released last month. The AG issued the full report with limited redactions related to grand-jury testimony and intelligence sources and methods. Democrats will claim secrets are hidden in the redactions, but Mr. Barr says he’ll let senior Members of Congress see most of those too. Claims of a coverup are spin for the anti-Trump media.

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Mr. Mueller devotes some 200 pages to the Russia tale, and the news is how little is new beyond what we already know from leaks and court filings. The special counsel’s biggest public service is laying out in detail how Russia sought to meddle in the election. The Kremlin endorsed a social-media campaign to plant lies and confuse voters, and it hacked Democratic emails and then used cutouts like WikiLeaks to release them to the public.

There’s no evidence that any of this influenced the election result, but it should concern Americans about Vladimir Putin’s bad intentions for 2020. Anyone who still calls Julian Assange a hero after reading the report is guilty of willful ignorance.