Sanders narrows the gap in South Carolina
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Democratic presidential hopeful Bernie SandersBernard (Bernie) SandersThe biggest challenge from the Mueller Report depends on the vigilance of everyone GOP Senate campaign arm hits battleground-state Dems over 'Medicare for All,' Green New Deal Warren unveils plan to cancel student loan debt, create universal free college MORE has cut into rival Hillary ClintonHillary Diane Rodham ClintonIt is wrong to say 'no collusion' 10 factors making Russia election interference the most enduring scandal of the Obama era And the winner of the Robert Mueller Sweepstakes is — Vladimir Putin MORE's lead ahead of the South Carolina primary, according to a new poll.

The CBS News “Battleground Tracker” poll released Sunday shows Sanders trailing Clinton by 19 points. It comes on the heels of other polls that have him trailing the former secretary of State by up to 38 points in the Palmetto State.

Sanders trailed Clinton in the CBS News poll one month ago by 22 points.

The poll reveals that Sanders struggles with recognition in South Carolina, where only 44 percent of respondents agreed that they know him “very well,” compared to 70 percent who said the same of Clinton.

South Carolina voters also question the preparedness of the Vermont senator to be president, with only 51 percent of respondents saying he is “ready” to be commander in chief, compared to 80 percent who said Clinton is prepared for the job.

Despite his shortcomings in those categories, Sanders is still seen as the more trustworthy candidate, with 75 percent of respondents agreeing he is “honest and trustworthy,” compared to 60 percent of Democrats who said Clinton can be trusted.

The CBS News poll, which surveyed 1,315 registered voters online from Feb. 10 – 12,  has a margin of error of 8.7 percent.