This editorial appeared on April 19 in the New York Times.

It leaves no doubt that Russia interfered in the 2016 election to benefit Donald Trump, the most unqualified president in our nation’s history.

It begins like this:

The report of the special counsel Robert Mueller leaves considerable space for partisan warfare over the role of President Trump and his political campaign in Russia’s interference in the 2016 election. But one conclusion is categorical: “The Russian government interfered in the 2016 presidential election in sweeping and systematic fashion.”

That may sound like old news. The Justice Department’s indictment of 13 Russians and three companies in February 2018 laid bare much of the sophisticated Russian campaign to blacken the American democratic process and support the Trump campaign, including the theft of American identities and creation of phony political organizations to fan division on immigration, religion or race. The extensive hacks of Hillary Clinton’s campaign emails and a host of other dirty tricks have likewise been exhaustively chronicled.

But Russia’s interference in the campaign was the core issue that Mr. Mueller was appointed to investigate, and if he stopped short of accusing the Trump campaign of overtly cooperating with the Russians — the report mercifully rejects speaking of “collusion,” a term that has no meaning in American law — he was unequivocal on Russia’s culpability: “First, the Office determined that Russia’s two principal interference operations in the 2016 U.S. presidential election — the social media campaign and the hacking-and-dumping operations — violated U.S. criminal law.”

The first part of the report, which describes these crimes, is worthy of a close read. Despite a thick patchwork of redactions, it details serious and dangerous actions against the United States that Mr. Trump, for all his endless tweeting and grousing about the special counsel’s investigation, has never overtly confronted, acknowledged, condemned or comprehended. Culpable or not, he must be made to understand that a foreign power that interferes in American elections is, in fact, trying to distort American foreign policy and national security.

The earliest interference described in the report was a social media campaign intended to fan social rifts in the United States, carried out by an outfit funded by an oligarch known as “Putin’s chef” for the feasts he catered. Called the Internet Research Agency, the unit actually sent agents to the United States to gather information at one point. What the unit called “information warfare” evolved by 2016 into an operation targeted at favoring Mr. Trump and disparaging Mrs. Clinton. This included posing as American people or grass-roots organizations such as the Tea Party, anti-immigration groups, Black Lives Matter and others to buy political ads or organize political rallies.

At the same time, the report said, the cyberwarfare arm of the Russian army’s intelligence service opened another front, hacking the Clinton campaign and the Democratic National Committee and releasing reams of damaging materials through the front groups DCLeaks and Guccifer 2.0, and later through WikiLeaks. The releases were carefully timed for impact — emails stolen from the Clinton campaign chairman John Podesta, for example, were released less than an hour after the “Access Hollywood” tape damaging to Mr. Trump came out.

All this activity, the report said, was accompanied by the well documented efforts to contact the Trump campaign through business connections, offers of assistance to the campaign, invitations for Mr. Trump to meet Mr. Putin and plans for improved American-Russian relations. Both sides saw potential gains, the report said — Russia in a Trump presidency, the campaign from the stolen information. The Times documented 140 contacts between Mr. Trump and his associates and Russian nationals and WikiLeaks or their intermediaries. But the Mueller investigation “did not establish that members of the Trump campaign conspired or coordinated with the Russian government in its election interference activities….”

The real danger that the Mueller report reveals is not of a president who knowingly or unknowingly let a hostile power do dirty tricks on his behalf, but of a president who refuses to see that he has been used to damage American democracy and national security.

To minimize this danger is to ignore that Russia has the tools to choose our president, in 2016 and in the next election.