The methods by which politicians — especially presidential candidates — try to take down their opposition is usually kept tightly under wraps.

But not so in this heated presidential campaign: While Hillary Clinton and President Obama were earning accolades at the Democratic Convention in Philadelphia, Donald Trump apparently posted his “cheat sheet” directly to his own website.

“Trump just posted oppo notes on Clinton to his site. If you’ve seen oppo, you recognize it,” the Huffington Post’s political reporter Christina Wilkie pointed out via Twitter on Wednesday night.

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Political commentator Keith Olbermann was quick to agree with her, tweeting: “Fer crying out loud, @RealDonaldTrump, did you hack YOURSELF? #OrMaybePutin #Dipshit.”

The “oppo notes” in question included documents titled “Syria in Chaos” and “Libya in Ruins,” along with talking points to prove that “Obamacare Is in Ruins” and “Younger Americans Are Struggling in the Obama Economy.”

Also included in the files posted to DonaldJTrump.com are links to articles from reputable news organizations such as the Washington Post, the New York Times, PolitiFact, the Associated Press and Gallup.

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The term “oppo research” refers to research done by campaign organizations working against opposing candidates. It is a standard part of every campaign as operatives look through public records, court filings and old newspaper articles to try to find something scandalous or at least embarrassing about their opponent, according to GAReport.com. Once something is found, the information is leaked to a reporter or TV news type with the suggestion that “there may be a story here.”

However, it appears that Trump merely took a short cut — and leaked to the world wide web for all to see.

As Wilkie pointed out in a subsequent tweet, “Trump campaign’s notes on Obama economy. Not bad, just shouldn’t be public.”

But when does the GOP candidate do anything conventionally?

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See the tweets and links to the notes below.

Trump just posted oppo notes on Clinton to his site. If you’ve seen oppo, you recognize it https://t.co/bLkZsmfeox pic.twitter.com/S9w3LHQfqh — Christina Wilkie (@christinawilkie) July 28, 2016

And here are Trump’s talking points against Obamacare, leaked, I only hope, by a saboteur https://t.co/ei1IpITWRM pic.twitter.com/ZXNSnBeUTR — Christina Wilkie (@christinawilkie) July 28, 2016

Trump campaign just posted their notes on how to appeal to young voters—complete with links https://t.co/FWxYDEg6Cl pic.twitter.com/uK9FMd7xFR — Christina Wilkie (@christinawilkie) July 28, 2016

Here are Trump’s oppo notes about Obama and national debt. A little thin, tbh https://t.co/ei1IpITWRM pic.twitter.com/Ygw8W4zmSh — Christina Wilkie (@christinawilkie) July 28, 2016

And, Trump campaign’s notes on Obama economy. Not bad, just shouldn’t be public. https://t.co/fvPAjurTSb pic.twitter.com/fxS2XLRUkK — Christina Wilkie (@christinawilkie) July 28, 2016