‘CNN poll: Bernie Sanders surges to join Biden atop Democratic presidential pack’ -CNN
https://www.cnn.com/2020/01/22/politics/cnn-poll-sanders-biden-january-national/index.html?utm_source=twCNNp&utm_content=2020-01-22T11%3A45%3A58&utm_term=image&utm_medium=social POLL: http://cdn.cnn.com/cnn/2020/images/01/22/rel1b.-.2020.pdf