Roy Moore has regained his footing in the Alabama special election for a seat in the U.S. Senate, according to a poll released Wednesday that showed the Republican has taken back the lead from Democrat Doug Jones.

Mr. Moore holds a 48 to 43 percent margin over Mr. Jones in a JMC Analytics and Polling survey after trailing the Democrat by a 42 to 46 percent margin earlier this month.

The survey of likely households found that undecided voters are leaning toward Mr. Moore, a former Alabama Supreme Court chief justice, after leaning toward Mr. Jones, a former U.S. attorney, and that men and evangelical Christian voters are coming back to Mr. Moore.

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