And this is not simply a thing that happened once. This is a thing that is still happening and will continue to happen. As Director of National Intelligence Dan Coats told the committee in February, “Persistent and disruptive cyberoperations will continue against the United States and our European allies using elections as opportunities to undermine democracy.” As he put it, “Frankly, the United States is under attack.”

The Robert Mueller investigation is looking into this, trying to figure out what exactly happened in 2016, who all was involved, which laws were broken and who will be charged and tried.

That investigation seems to be incredibly fruitful. According to Vox’s tally:

“Special counsel Robert Mueller’s team has either indicted or gotten guilty pleas from 32 people and three companies — that we know of. That group is composed of four former Trump advisers, 26 Russian nationals, three Russian companies, one California man, and one London-based lawyer. Five of these people (including three former Trump aides) have already pleaded guilty.”

Twelve of those indictments came last week with a disturbingly detailed account of what the Russians did. As The New York Times put it:

“From phishing attacks to gain access to Democratic operatives, to money laundering, to attempts to break into state elections boards, the indictment details a vigorous and complex effort by Russia’s top military intelligence service to sabotage the campaign of Mr. Trump’s Democratic rival, Hillary Clinton.”

Whether or not Trump himself or anyone in his orbit personally colluded or conspired with the Russians about their interference is something Mueller will no doubt disclose at some point, but there remains one incontrovertible truth: In 2016, Russia, a hostile foreign adversary, attacked the United States of America.