The New York Times reported Thursday that Sanders is ahead of Donald Trump and Hillary Clinton in Florida and North Carolina and is expected to do even better in Iowa and Ohio, as well as in states with a high proportion of African Americans.
The report said the latest polling in these states indicates Sanders has the support of about 40 percent of Democratic primary voters, a number that could help him fend off Democratic rival Hillary Clinton, who is expected in Iowa, New Hampshire and South Carolina on Saturday.
It added that Clinton is expected a draw in those states, which hold the first two nominating contests, and it said that among Democrats, the latest poll shows Sanders has an edge among likely voters.
It is still unclear whether Sanders is the front-runner in any of the states, but he is in a strong position because of his fundraising, campaign infrastructure, and organization, the Times reported.
In the latest Quinnipiac poll released Wednesday, Sanders leads Trump by 15 points among likely primary voters and is leading Trump among Democratic voters by 18 points, the poll showed.
In that same poll, Clinton leads Sanders by 9 points among Democrats and by 15 among independents.
The latest Quinnich poll also showed Sanders trailing by just 6 points among voters under 50 years old.