Lucas was referring to the fact that last September's poll was conducted solely online. The majority of those surveyed in the most recent poll were reached via telephone, while some online contacts were made to reach younger respondents.
Lucas also accused the poll of being weighted toward Democrats.
"He's clearly oversampling Democrats, just as the mainstream media does to harm the Romney-Ryan campaign," he said. "Repass' work was embarrassing last year, and we look forward to grading it again this year on Nov. 6."
The pool of 401 likely voters was targeted to match the 2010 U.S. Census' demographic profile of the state's adult population. But when compared to statewide registration totals on the Secretary of State's website, the poll actually included a greater percentage of Republicans in the overall sample.
The Tomblin campaign welcomed the poll results. Spokesman Chris Stadelman said the campaign remains optimistic that voters won't be swayed by the Maloney campaign's attacks.
"Gov. Tomblin appreciates that so many voters continue to support him and his plans for more jobs and lower taxes in West Virginia," Stadelman said. "While there is more work to be done, Gov. Tomblin is proud to fight against the EPA and for our coal industry and miners, and to maintain the fiscally responsible policies of recent years."
Maloney campaign spokesman Seth Wimer, who was reached in Florida, said his candidate's message is working.
"The campaign's momentum is growing every day because Bill Maloney's message of a brighter future for West Virginia is resonating with voters," he said. "People are tired of rising unemployment in the Obama-Tomblin economy and the career politicians, who allow our state to be nearly last in every category."
Wimer said Maloney plans to continue focusing on plans to create jobs, control government spending and improve schools through the rest of the campaign.
In the race for two seats on the state Supreme Court, incumbent Democratic Justice Robin Davis holds a solid lead among the four candidates with 40 percent of respondents favoring her.
Fellow Democrat Letitia "Tish" Chafin and Republicans John Yoder and Allen Loughry are in a tight battle for the second seat, the poll indicates.
Chafin drew 30 percent in the poll, while Yoder was one point behind at 29 percent and Loughry drew 24 percent.
The race had 29 percent of likely voters saying they were undecided.
Incumbent Democrats also held significant leads in two other statewide races.
Incumbent Attorney General Darrell McGraw was favored over Republican Patrick Morrisey by 57 percent to 33 percent.
Incumbent state Treasurer John Perdue drew 53 percent support, compared to 34 percent who favored Republican state Sen. Mike Hall.
Repass said the down-ticket races are more challenging to poll.
"They tend to be very name identification-oriented," he said. "If you know Darrell McGraw, and know that he's attorney general, then they're more likely to say in a survey that they'll support that candidate versus a newcomer."
Jay vs. Shelley
The poll also included a hypothetical race between longtime U.S. Sen. Jay Rockefeller, D-W.Va., and Second Congressional District Rep. Shelley Moore Capito, R-W.Va.
Rockefeller's current term ends in 2014, and it has been speculated that Capito could make a run for the seat. Capito has not confirmed that, and Rockefeller has not announced whether he will seek another term.
The poll found that if the election in a Rockefeller-Capito race were held today, Capito would get 48 percent of the vote and Rockefeller, 44 percent.
However, those results are within the poll's margin of error, and another 8 percent of voters were undecided.
"Sen. Rockefeller being behind by 4 points is a surprise to me because he has always polled very well in West Virginia," Repass said.
He said Rockefeller's increasing tendency to align with the national Democratic Party on issues like the Affordable Care Act and U.S. Environmental Protection Agency regulations has cut into his historic polling advantage.
Meanwhile, Capito has carved out a more moderate niche with state voters.
"She's a popular, effective congresswoman," Repass said. "She's a center-right Republican, and she knows how to work with her Democratic colleagues ... she works across the aisle, and I think West Virginians recognize that."
Contact writer Jared Hunt at jared.h...@dailymail.com or 304-348-5148.