Kai Trump is catching heat after posting a breezy TikTok video while the war in Iran rages on, Wonderwall.com can report. After President Donald Trump's 18-year-old granddaughter shared clips of herself lip-syncing and showing off her outfit on social media, online critics quickly piled on, blasting the timing as tone-deaf amid escalating global concerns and rising gas prices. Kai filmed the video in her Palm Beach, Fla., bedroom wearing a light blue crop top, matching sneakers and crisp white pleated shorts.