Clearing the name of a traitor was a priority for the Democratic presidential candidate.

Radical U.S. Senator Elizabeth Warren, who could be the next Commander-in-Chief, asked then-President Barack Obama in his final days in office to formally exonerate Soviet atomic spy Ethel Rosenberg, according to media reports.

This was a not a request for a mere presidential pardon, which the Department of Justice cautions does “not erase or expunge the record” of the conviction, but a request that history be rewritten.

Warren, now a leading contender for the Democratic Party’s presidential nomination, sent a letter dated Jan. 10, 2017, on behalf of one of Rosenberg’s sons.

“I am writing on behalf of my constituent, Robert Meeropol, and his family to request that you provide a thorough review of their request that you issue a proclamation exonerating his mother, Ethel Rosenberg. Ms. Rosenberg was executed by the United States for conspiracy to commit espionage in 1953.”

The request originated with the Rosenberg Fund for Children, a 30-year-old 501(c)(3) nonprofit that, in founder Meeropol’s words, was created to enable radical left-wing activists “to rally around the children of this era’s targeted activists.” The group boasted on its website that its petition in late 2016 to President Obama “garnered 60,000 supporters, both from within the ranks of RFC donors, and beyond,” and that it “received extensive media attention that had global reach.”

“The fear of the McCarthy era led to Ethel Rosenberg's unjust conviction and execution,” Meeropol said at the time. “We’re not asking for a pardon, because she was not guilty. We’re asking for a proclamation that she was wrongly convicted, and wrongly executed.”

On RFC’s advisory board sit entertainers Edward Asner, Harry Belafonte, Mandy Patinkin, and Susan Sarandon, along with communist stalwart Angela Davis, and convicted cop-killer Leonard Peltier.

The letter is yet more proof that Warren would be a captive of the far Left if allowed to reside in the White House.

And Warren wasn’t the only Massachusetts Democrat to ask President Obama to exonerate Rosenberg. Her fellow senator, Ed Markey, did the same, as did House Ways and Means Committee Chairman Richard Neal and House Rules Committee Chairman James McGovern.

In December 2016, former Massachusetts governor and 1988 Democrat presidential pick Michael Dukakis issued a public statement asking Obama to publicly proclaim Rosenberg’s innocence.

Yet the guilt of Communist spies Ethel and Julius Rosenberg remains.

The married couple was electrocuted at Sing Sing on June 19, 1953.

Their spy ring gave the USSR sensitive information about U.S. air capabilities in the Korean War and the secrets of the A-bomb, allowing our totalitarian enemies to develop nuclear weapons years earlier than they otherwise would have. These spies helped to change the balance of power in the world and emboldened the Soviet Union as it became a superpower and went on the march enslaving tens of millions in Eastern Europe.

As Steven T. Usdin wrote in his 2005 book, Engineering Communism:

“Rosenberg’s band of amateur spies turned over detailed information on a wide range of technologies and weapon systems that hastened the Red Army’s march to Berlin, jump-started its postwar development of nuclear weapons and delivery systems, and later helped Communist troops in North Korea fight the American military to a standoff.”

In sentencing the Rosenbergs, Judge Irving Kaufman was unsparing in his criticism:

“I consider your crime worse than murder. Plain deliberate contemplated murder is dwarfed in magnitude by comparison with the crime you have committed. In committing the act of murder, the criminal kills only his victim. The immediate family is brought to grief and when justice is meted out the chapter is closed. But in your case, I believe your conduct in putting into the hands of the Russians the A-bomb years before our best scientists predicted Russia would perfect the bomb has already caused, in my opinion, the Communist aggression in Korea, with the resultant casualties exceeding 50,000 and who knows but that millions more of innocent people may pay the price of your treason. Indeed, by your betrayal you undoubtedly have altered the course of history to the disadvantage of our country.”

In turning down a request to pardon the Rosenbergs, President Dwight D. Eisenhower didn’t mince words:

“I can only say that, by immeasurably increasing the chances of atomic war, the Rosenbergs may have condemned to death tens of millions of innocent people all over the world. The execution of two human beings is a grave matter. But even graver is the thought of the millions of dead whose deaths may be directly attributable to what these spies have done.”

The Rosenbergs’ guilt was proved long ago but radicals won’t allow facts to get in the way of their narrative.

Because the Rosenbergs were unabashed Communists who didn’t hide their admiration of Stalin’s Soviet Union, the Left ran to their defense, using rationales that shifted over time as more and more damning evidence surfaced against the couple. When the Rosenbergs’ guilt could no longer be disputed, their defenders pivoted, saying they had noble intentions, that the information passed on to the Soviets was junk, and that there were irregularities in their prosecution.

These are all lies but because they remain part of the Left’s anti-American mythology, they have remarkable staying power.

The fact that Elizabeth Warren asked an American president to clear the name of a despicable proven traitor tells you all you need to know about how she would behave as president.