Sen. Bernie SandersBernard (Bernie) SandersDems ponder gender politics of 2020 nominee 2020 Dem contenders travel to key primary states After Florida school shooting, vows for change but no clear path forward MORE (I-Vt.) is up by double-digits on former secretary of State Hillary ClintonHillary Diane Rodham ClintonWoman behind pro-Trump Facebook page denies being influenced by Russians Trump: CNN, MSNBC 'got scammed' into covering Russian-organized rally Pennsylvania Democrats set to win big with new district map MORE in Iowa and New Hampshire, according to a poll released by CBS News on Sunday.

The senator is drawing 43 percent support in the first-in-the-nation Iowa caucus, besting Clinton by 10 points.

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Sanders is also drawing 52 percent support in New Hampshire, almost doubling Clinton, who sits at 30 percent support in the Granite State.

Clinton, however, doubles-up Sanders in South Carolina, drawing 46 percent compared to the senator’s 23 percent.

Vice President Biden, who is considering a run for the Democratic presidential nomination, places third in all three states, drawing 10 percent support in Iowa, 9 percent support in New Hampshire, and a strong 22 percent backing in South Carolina.

The YouGov/CBS News 2016 Battleground Tracker poll, conducted Sept. 3 – 10, surveyed 548 likely Democratic primary voters in New Hampshire, 528 in South Carolina, and 646 in Iowa. The margin of error for the poll is 5 percent.