Jack Schlossberg Supports Sister Tatiana Schlossberg After Terminal Cancer Diagnosis

Jack Schlossberg Supports Sister Tatiana Schlossberg After Terminal Cancer Diagnosis

Jack Schlossberg, the son of Caroline Kennedy, showed his support for his sister Tatiana Schlossberg after she shared that she had been diagnosed with a rare terminal cancer.

Jack Schlossberg is standing by his family.

After his sister Tatiana Schlossberg shared her terminal cancer diagnosis, the son of Caroline Kennedy and Edwin Schlossberg offered his support on social media.

In a series of posts on his Instagram Stories Nov. 22, Jack, 32, reposted excerpts from Tatiana’s New Yorker essay, in which she detailed being diagnosed with acute myeloid leukemia after giving birth to her second baby with husband George Moran in May 2024.  

The congressional candidate who announced his run for office earlier this month went on to offer a personal note as he posted a photo of a concrete road, followed by a picture of a blue sky. On both images, he wrote, “Life is short—let it rip.”

Tatiana who also shares 3-year-old son Edwin Jr. with George explained in her essay that she underwent chemotherapy, a bone-marrow transplant and a clinical trial of CAR-T-cell therapy to treat the rare bone cancer. After receiving the treatments, her doctors estimated she likely has one year to live.

In the face of her prognosis, the 35-year-old reflected on how her family, including Jack and their sister Rose Schlossberg, have supported her through her cancer journey.

“My parents and my brother and sister, too, have been raising my children and sitting in my various hospital rooms almost every day for the last year and a half,” she wrote in the piece. “They have held my hand unflinchingly while I have suffered, trying not to show their pain and sadness in order to protect me from it. This has been a great gift, even though I feel their pain every day.”

The environmental journalist also paid tribute to her husband whom she wed in 2017 writing that he “did everything for me that he possibly could.”

“I know that not everyone can be married to a doctor, but, if you can, it’s a very good idea,” she said. “He is perfect, and I feel so cheated and so sad that I don’t get to keep living the wonderful life I had with this kind, funny, handsome genius I managed to find.”

For now, Tatiana wrote that her focus is on her kids.

“Mostly, I try to live and be with them now,” she continued. “But being in the present is harder than it sounds, so I let the memories come and go.”