Obama Victory Tweet Most Retweeted: At 0416 GMT, Barack Obama tweeted a photograph of himself and wife Michelle embraced in a hug along with the words,”four more years.” Since he posted it, the image and tagline has been retweeted more than half a million times, the most retweeted Twitter post ever. That number underscores the importance of social media in the role of voters or even up-and-coming voters. The same picture was also uploaded to Facebook, where it also broke records by becoming the most ‘liked’ photo ever posted to the site.