Iowa poll: Hillary Clinton maintains lead over Bernie Sanders

Story highlights

  • Women are buoying Clinton's lead, supporting her nearly 2-to-1
  • The top issue of concern to the voters was the economy and jobs

Washington (CNN)Hillary Clinton is maintaining her solid lead over Democratic presidential opponent Bernie Sanders in Iowa, according to a new poll out Tuesday, and two-thirds of voters have made up their minds.

The former secretary of state leads the Vermont senator 51% to 40% in the Democratic caucuses, according to a Quinnipiac poll released Tuesday, nearly identical to the 51% to 42% lead she had in Quinnipiac's November poll.
Former Maryland Gov. Martin O'Malley had the support of 6% of likely Democratic caucus-goers, up slightly from the 4% he had registered last month.
    Overall, 66% of the likely Democratic caucus participants said they have made up their minds, up from 63% in November.
    Women are buoying Clinton's lead, supporting her nearly 2-to-1, according to the poll. Women support Clinton 59% to 32%, while men back Sanders 52% to 39%.
    The top issue of concern to the voters was the economy and jobs, with terrorism being the fifth-most pressing issue despite the increased attention to it on the trail in the wake of the Paris and San Bernardino attacks.
    Clinton has maintained a solid lead nationally and in most early states over Sanders for much of the campaign, though Sanders is polling ahead of Clinton in New Hampshire.
    Quinnipiac University surveyed 727 Iowa likely Democratic caucus participants from December 4-13, with a margin of error of plus or minus 3.6 percentage points.