Scott Bessent's handwritten note to Senator Elizabeth Warren read seven words: "Happy Indigenous People's Day in advance to you and your family."

That was the Treasury Secretary of the United States, pen to paper, on official stationery.

The exchange came at the tail end of a blistering written response from Bessent after Warren — the ranking Democrat on the Senate Banking Committee — sent her latest letter demanding answers about Treasury Department operations. It was, by the department's count, one of more than 100 letters Warren has fired off to Treasury since the Trump administration began. Bessent had evidently reached his limit.

"Rather than take my suggestion of studying introductory economics," Bessent wrote, "you have continued your letter-writing crusade and participation in tabloid fodder about the Treasury Department." He added that "it is difficult to treat your concern as sincere."

Then he went for the record. Warren had positioned herself as a fiscal hawk warning about Treasury yield surges and interest rate policy. Bessent reminded her where she stood when it actually mattered: "As the federal funds rate climbed from near zero to its highest level in 22 years, with inflation hitting a 40-year high, you were a cheerleader for the Biden Administration's reckless spending."

On social media, Bessent posted a separate shot across the bow, writing that "in her latest sciolistic letter to me, @SenWarren made it clear that she knows even less about foreign exchange markets than she does about banking." For those keeping score at home, "sciolistic" means pretending to knowledge you don't have. The word choice was not accidental.

Warren's October 10 letter had blamed a surge in Treasury yields on the Fed's decision to raise the federal funds rate by a quarter of a percentage point. Bessent's October 9 response — sent before Warren's latest letter even arrived — had already dismantled the argument she was about to make. The timeline alone is a problem for the senator from Massachusetts.

The Indigenous People's Day note, of course, callbacks to the 2018 DNA test Warren released to prove her Native American ancestry — the one that showed she was, at most generous interpretation, 1/64th Native American, and at the lowest estimate roughly 1/1,024th. Six generations removed. As genealogist and DNA specialist Blaine Bettinger noted at the time, that percentage is functionally indistinguishable from the average American of European descent. President Trump has called her "Pocahontas" for years. The test was supposed to end the joke. It became the joke.

Warren checked a box at Harvard. She listed herself as a minority in the Association of American Law Schools directory. The university touted her as evidence of faculty diversity. When confronted, she pivoted to "family stories" about high cheekbones. The DNA test was her big swing to settle it once and for all.

One one-thousand-and-twenty-fourth. That's what the big swing produced.

A sitting Treasury Secretary just put it in a handwritten note and mailed it to her office. Warren's response to the substance of Bessent's letter has not materialized. Over 100 letters sent, and the one that came back bit harder than all of them combined.