(FILES) US President Donald Trump shakes hands with Tulsi Gabbard after she was sworn in as Director of National Intelligence (DNI) in the Oval Office of the White House in Washington, DC, on February 12, 2025. US President Donald Trump hailed intelligence chief Tulsi Gabbard on May 22, 2026 after she said she was resigning to care for her cancer-stricken husband. "Tulsi has done an incredible job, and we will miss her," Trump said on his Truth Social network, adding that her deputy Aaron Lukas would serve as acting Director of National Intelligence. (Photo by ANDREW CABALLERO-REYNOLDS / AFP via Getty Images)