Bernie Sanders has a 22-point lead in New Hampshire and a 10-point edge over Hillary Clinton in Iowa, the first two states to apportion delegates in the 2016 race for the Democratic presidential nomination, according to the YouGov/CBS News 2016 Battleground Tracker poll released Sunday, September 13, 2015.
Sanders has 52% of support among New Hampshire Democrats versus Clinton's 30%, while the Vermont senator has 43% support in Iowa compared to the former secretary of state's 33%.
Clinton still leads in South Carolina with 43% compared to Sanders' 23% and Joe Biden's 22%. Biden has not yet decided if he'll compete, but the poll suggests if he does he would cut into Clinton's strength among African-Americans, who make up a slight majority of Democratic voters in the first southern state to hold a 2016 primary.
Click here to read a full summary of the YouGov/CBS News 2016 Battleground Tracker poll.
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