Democratic senatorial candidate Doug Jones' supporters are also more enthusiastic than Roy Moore's backers. | Brynn Anderson/AP Photo Fox poll: Jones leads Moore by 10 in Alabama

Democrat Doug Jones has a 50 percent to 40 percent lead over Republican Roy Moore in a new Fox News poll released Monday morning — his biggest lead in any public survey of Alabama's special Senate election.

The poll found 8 percent of likely voters were undecided, and 2 percent were supporting another candidate. Fox News' last poll, conducted last month, gave Jones a 50 percent to 42 percent lead.


Most public surveys in the past week have shown Moore with a small lead over Jones.

One potential explanation for the difference between the Fox News' poll and other surveys: Jones leads Moore by 30 points among voters interviewed on cell phones, who tend to be younger, while the race is even among voters interviewed on landlines. Other surveys, some of them automated polls, have not included calls to cell phones.

Allegations that Moore sexually abused young girls have rocked Tuesday's special election to replace Attorney General Jeff Sessions, giving Jones a chance to win in bright-red Alabama, where President Donald Trump romped to a 28-point victory last November.

In the poll, 39 percent of likely voters believe the allegations against Moore are true and 33 percent believe they are false. Last month, 38 percent believed they were true and 37 percent believed they were false.

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Jones leads among non-whites, 83 percent to 7 percent. Moore has a 55 percent to 35 percent edge among white voters, including a 61 percent to 28 percent lead among whites without college degrees.

Jones' supporters are also more enthusiastic than Moore's backers: 70 percent of Jones' supporters say they strongly support the Democrat, compared to just 57 percent of Moore backers strongly supporting him. Twenty-nine percent of Moore backers say they support the Republican with reservations.

Fox News conducted the poll of 1,127 likely voters from Dec. 7 to Dec. 10. The margin of error is plus or minus 3 percentage points.