Washington (CNN) Roger Stone's hero is Richard Nixon. He has a shrine of Nixon memorabilia in his house. He's fond of flashing Nixon's victory sign -- at the most inappropriate moments.

Nixon viewed everything -- EVERYTHING -- as a political campaign to either win or lose. With the entire world divided between his opponents and his allies. And because of that worldview, Nixon believed anything was justifiable under the banner of winning. The ends always justified the means.

Which brings me to Stone's Instagram post earlier this week, in which he put what looked like a gun's crosshairs next to a photo of Amy Berman Jackson, the federal judge overseeing his charges of lying to Justice Department investigators about contacts with WikiLeaks during the 2016 campaign. That same post accused special counsel Robert Mueller of being a "Deep State hitman" and suggested that the proceeding was a "show trial" because Jackson was appointed by then-President Barack Obama, a Democrat.

That's right out of the Dirty Politics 101 handbook. Savage your opponents. Raise questions about their motives. Attack, attack, attack.

What Stone doesn't get -- and what Nixon never got either -- is that he isn't running a political campaign anymore. He's in the legal fight of his life. And the rules of the law are a lot different than the rules of politics. (The rules of politics are, generally speaking, that there are no rules.)

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