A photograph of Barack Obama embracing his wife Michelle has become the most liked and re-tweeted post ever
Obama posted the image at 0416 GMT, effectively claiming victory over Mitt Romney in the US presidential race. Since then it has been re-tweeted nearly 700,000 times. More than 3.23 million people have liked the image on Facebook, with over 400,000 shares; more than 100,000 today were liking it every hour.