Former Secretary of State Hillary Clinton is now in danger of losing her electability argument if this new poll is echoed by future polls. Although polls show her besting Vermont Sen. Bernie Sanders in South Carolina by a wide margin, new polls show her and Sanders in a ‘dead heat” in Nevada, which has long been assumed to be part of the

Clinton firewall. If this is part of the poll look for predictions that it’ll be a long, politically battle for the 2016 Democratic Party nomination to need to be revised — to a long, intensely bloody battle:

ermont Sen. Bernie Sanders fares a bit better than rival Hillary Clinton in head-to-head matchups against Republican presidential contenders, a USA TODAY/Suffolk University Poll finds, and he has pulled within 10 percentage points of her for the Democratic nomination.

The nationwide survey, taken Thursday through Monday, underscores how formidable an opponent the 74-year-old democratic socialist has become against one of the Democratic Party’s most established figures.

Clinton — a former first lady, two-term New York senator and secretary of State — is backed by 50% of likely Democratic primary and caucus voters, down 6 points from December. Over that time, Sanders’ standing has surged 11 points, to 40%.

While Clinton argues that she would be more electable in November, Sanders shows somewhat more strength against four possible Republican opponents, although almost all of the matchups fall within the poll’s margin of error of plus or minus 3 percentage points.