US president Joe Biden speaking during a campaign event at Emanuel AME Church on January 8th, 2024, in Charleston, South Carolina. In a race where many voters will be holding their nose as they insert their vote in the ballot box, his likability is a key differentiation. Photograph: Sean Rayford/Getty Images In late October 2016, just weeks before the Hillary Clinton/Donald Trump presidential election, a shocking Washington Post/ABC tracking poll showed Clinton 12 points ahead of Trump in the race for the White House, 51 per cent to 39 per cent. The poll from such a reputable source so close...