Former US President Donald Trump's 25-year-old daughter, Tiffany, has revealed that he avoids filming with her because of her extra weight.

Trump's former aide said he did not choose Tiffany to appear with the crowd on occasions, but the US president said his "expelled" help had gone through a bad night and had been drinking too much.

The US president was forced to deny the secretary, who resigned immediately, saying: "I love Tiffany very much."