At 14 years old, Barron Trump appears to already be pushing 6’6″. The president’s youngest son was seen boarding Air Force One in Morristown, New Jersey on August 16, looking almost a head taller than his parents, who are famously tall themselves. President Donald Trump, 74, stands at 6’3″ (though that’s disputed by some), and First Lady Melania Trump, a former model, is 5’10. This kid is growing like a weed.