She has been called one of President Trump’s greatest assets, his Gen Z “whisperer” who just happens to be his favourite, and perhaps most competitive, golf partner.

Few had heard of Kai Madison Trump, Trump’s eldest grandchild, before the inauguration last week. Then millions searching online for a behind-the-scenes look at the day stumbled upon the 17-year-old’s little-followed YouTube account, which had mostly been sharing video logs about the merits of different golf swings.

“My grandpa became the president again,” read the title of her 14-minute video, which quickly racked up more than three million views. Kai, who bears an uncanny resemblance to her father, Donald Jr, is filmed getting ready and gives viewers an unofficial tour of the White House.

Between mouthfuls of cookies