Elizabeth Shackelford, who was seen as a rising star at the State Department, wrote a scathing resignation letter, “accusing Secretary of State Rex Tillerson and the Trump administration of undercutting the State Department and damaging America’s influence in the world,” Foreign Policy reports.

Shackelford “wrote to Tillerson that she reluctantly had decided to quit because the administration had abandoned human rights as a priority and shown disdain for the State Department’s diplomatic work.”

“Her former colleagues said her departure — and the sentiments expressed in her letter — reflect a wider exodus of midcareer diplomats who have lost confidence in Tillerson’s management and the Trump administration’s approach toward diplomacy.”