Former Alabama Supreme Court Chief Justice Roy Moore Roy Stewart MooreVulnerable Senate Democrat urges unity: 'Not about what side of the aisle we're on' Sessions hits back at Trump days ahead of Alabama Senate runoff Judge allows Roy Moore lawsuit over Sacha Baron Cohen prank to proceed MORE leads the field of potential Republicans vying for the chance to challenge Sen. Doug Jones (D), a year and a half after Moore lost what was supposed to be an easy election in a deep-red state.

A new poll shows Moore leading a still-evolving field of Alabama Republicans competing for the nomination. He is the top choice of 27 percent of Alabama Republican voters, according to the Mason-Dixon Polling & Strategy Inc. survey.

The state’s three Republican members of Congress finish well behind Moore: Rep. Mo Brooks Morris (Mo) Jackson BrooksOvernight Defense: Trump hosts Israel, UAE, Bahrain for historic signing l Air Force reveals it secretly built and flew new fighter jet l Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals' OVERNIGHT ENERGY: House Democrats tee up vote on climate-focused energy bill next week | EPA reappoints controversial leader to air quality advisory committee | Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals' Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals,' official says MORE would take 18 percent, Rep. Bradley Byrne Bradley Roberts ByrneBottom line Jerry Carl wins GOP Alabama runoff to replace Rep. Bradley Byrne Jeff Sessions loses comeback bid in Alabama runoff MORE clocks in at 13 percent and Rep. Gary Palmer Gary James PalmerComer tapped to serve as top Republican on House Oversight Top GOP post on Oversight draws stiff competition Trump takes pulse of GOP on Alabama Senate race MORE would take 11 percent.

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State Senate President Pro Tem Del Marsh would take 4 percent, and businessman Tim Jones finishes with just 2 percent of the vote.

So far, Byrne is the only Republican candidate among those tested to have formally entered the race. Tommy Tuberville, the former Auburn University football coach, and state Auditor Jim Zeigler have also said they will run, though they were not tested in the survey.

Moore, who captured the Republican nomination in 2017 by appealing to the state’s most conservative evangelical voters, came undone amid multiple allegations that he harassed or pursued women who were in their teens when he was in his 30s.

Jones, a former U.S. attorney, won the December special election by 1.7 percentage points, or about 22,000 votes. He became the first Democrat in more than a generation — since Sen. Richard Shelby Richard Craig ShelbySenate GOP eyes early exit Dems discussing government funding bill into February GOP short of votes on Trump's controversial Fed pick MORE, who has since changed his party affiliation — to represent Alabama in the U.S. Senate.

Moore has not formally said he will run again, though he has said he is thinking about jumping in again.

“I’m seriously considering it,” Moore told a Christian radio host last month. “I think that it [the 2017 Senate race] was stolen.”

Whoever wins the Republican nomination will have a strong chance to unseat Jones in a state that favored President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE by 28 percentage points in 2016. Just 45 percent of Alabamians say they approve of the job Jones is doing in the Senate, and only 40 percent say they would vote to reelect the freshman Democrat. Fifty percent of Alabama voters say they would vote to replace him.

Moore remains a deeply polarizing figure, even among conservative voters in the state. A third of Alabama Republicans, 34 percent, say they have a favorable impression of Moore, while 29 percent see him unfavorably.

No other Republican tested has unfavorable ratings higher than 8 percentage points. About half of all Alabama Republicans do not recognize Byrne and Palmer, and about a quarter of state Republicans say they don’t know Brooks.

Just 4 percent of Alabama Republicans do not have an impression of Moore, likely indicating that Moore has a ceiling of support that is lower than other candidates.

The Mason-Dixon survey polled 625 registered Alabama voters from April 9 to 11 and has a margin of error of plus or minus 4 percentage points. The poll surveyed an additional 400 Republican voters, with a margin of error of plus or minus 5 percentage points.