WASHINGTON (AP) — Tulsi Gabbard resigned as President Donald Trump’s director of national intelligence on Friday, saying she needed to leave office as her husband battles cancer, becoming the fourth Cabinet member to depart during Trump’s second term.

In her resignation letter, which she posted on social media, Gabbard said she told Trump she would leave her job overseeing the coordination of 18 intelligence agencies on June 30. She said her husband had recently been diagnosed with a rare form of bone cancer and “faces major challenges in the coming weeks and months.”