New Delhi, Sept. 27 -- Donald Trump's eldest granddaughter, Kai Trump, has announced the launch of her own clothing line, drawing attention for its high-profile debut at the White House.

The 18-year-old daughter of Donald Trump Jr. introduced her self-titled fashion brand with promotional images taken on the grounds of the presidential residence, wearing one of the line's $130 sweatshirts.

Kai stood alongside her grandfather, the 79-year-old US President, as he addressed reporters outside the White House on Friday.

Introducing her to the press, Donald Trump remarked, "This is Kai, by the way," highlighting her presence just over a year after she made a brief appearance with a speech at the Republican National Convention.

Shortly after...