(CNN) Vermont Sen. Bernie Sanders' lead in New Hampshire continues to hold, according to the second release from a tracking poll conducted by the University of New Hampshire for CNN.

Saturday's interviews, which make up roughly a quarter of the poll's sample, show Klobuchar having her best day in the tracker so far, while Warren had her worst.

Still, the major contours of the race have held steady: Sanders continues to outpace Buttigieg by a wide margin among those who have definitely made up their minds about whom to support, while the two top contenders run about even among those who have yet to commit to a candidate.

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