While the Republican National Convention has been a family affair for Donald Trump, his youngest son - the only child of the billionaire who did not address delegates - didn't seem impressed. Barron, 10, could not stop yawing and rubbing his eyes throughout his first appearance at the RNC in Cleveland, looking incredibly bored as his father spoke about how he will "make America great again." He was with his mother Melania, her first sighting since the controversy over her plagiarized speech on Monday.