http://www.usatoday.com/story/news/politics/onpolitics/2016/02/28/clinton-leads-sanders-massachusetts/81078554/
A new Suffolk University Poll of 500 likely Democratic primary voters in Massachusetts shows Hillary Clinton leading Sanders by eight percentage points, 50%-42%. The survey, which has a margin of error of plus or minus 4.4 points, was taken Thursday through Saturday — before Clinton's nearly 50-point landslide in South Carolina Saturday bolstered her momentum.
This is a tough one for Sanders, as Massachusetts is one of his most likely targets for a Super Tuesday win outside of Vermont. The poll ended Saturday, so wouldn’t account for any post-SC bounce.