One of Donald Trump’s closest and most devoted aides, Natalie Harp, has faced intense media scrutiny this week, after a Democratic senator, Jon Ossoff, name-checked her in a speech that went viral. So what do we know about Harp, who is often referred to as the ‘human printer’? And why is everybody talking about her relationship with Trump? Helen Pidd speaks to the Guardian’s international news editor, Paul Owen. Help support our independent journalism at theguardian.com/infocus