A Change Research poll released Saturday shows Bernie Sanders surging nationally, with a 20 point lead over the Democratic primary field.
Overall, 40 percent of likely Democratic primary voters said they would vote for Sanders. Elizabeth Warren came in second place with 20 percent support, followed by Pete Buttigieg with 14 percent.
Joe Biden and Amy Klobuchar came in fourth and fifth, with 9 percent and 8 percent support respectively. Centrist former mayor Michael Bloomberg polled at just 3 percent.
The poll also showed Sanders with a 60 percent approval rating, the highest of any Democratic candidate in the field.
When survey respondents were asked to rank candidates in order of their preference, Sanders again came out on top with 54 percent support.
The survey of 821 likely voters was conducted between February 25 and 27, prior to the South Carolina primary.