The top chart represents results from the new Boston Herald / Franklin Pierce University Poll -- done between February 2nd and 6th of a random sample of 407 New Hampshire Democratic primary voters, and has a 4.9 point margin of error.
The second chart is the newest Monmouth University Poll -- done between February 4th and 6th of a random sample of 502 New Hampshire Democratic primary voters, and has a margin of error of 4.4 points.
Right after Iowa, the first polls in New Hampshire showed Bernie Sanders leading Hillary Clinton by more than 20 points. These two polls suggest the race might be tightening in New Hampshire. One has Sanders leading by 7 points, and the other has him leading by 10 points.
If Clinton can make the primary outcome closer than predicted (say 7 points or less), that could be considered a victory for her, since Sanders has been leading big for some time now in New Hampshire. -- and it could bode well for hr as she enters friendlier states.