(CNN) - A new poll suggests that the controversy surrounding Democratic Senate nominee and Connecticut Attorney General Richard Blumenthal's misstating of his military record during the Vietnam War does not seem to be hurting him with most state voters.
A Quinnipiac University survey released Thursday indicates that more than six out of ten Connecticut voters say the controversy doesn't make a difference to their decision in the Senate election, with a third questioned saying it makes them less likely to vote for Blumenthal.
According to the poll, 56 percent say they back Blumenthal, with 31 percent supporting former professional wrestling executive Linda McMahon, in a likely general election matchup. One in ten were undecided. Blumenthal's 25 point advantage is down from a 33 point lead in a March poll conducted by Quinnipiac University.
"It looks like Connecticut voters forgive Attorney General Richard Blumenthal, or feel that there is nothing to forgive in the Vietnam service flap. While he has taken a hit with voters, his poll numbers were so high to begin with that he still maintains a commanding lead over Linda McMahon," says Quinnipiac University Poll Director Douglas Schwartz.
Early last week the New York Times reported that Blumenthal distorted his military service record. The article alleged that Blumenthal lied about serving in Vietnam and says that he never served in that war, even though the candidate has claimed he did in speeches before veterans groups and military families.
A day after the release of the article, Blumenthal acknowledged he had not always accurately described his military service during the Vietnam War. Blumenthal served in the Marine Corps Reserves during the Vietnam War, and was stationed stateside. He said he mistakenly said he served "in" Vietnam rather than "during" Vietnam in his previous speeches.
The absence of a strong apology in his remarks last Tuesday fueled criticism from Republicans and even some Democrats.
"I have made mistakes and I am sorry. I truly regret offending anyone," Blumenthal said in a statement sent to the Hartford Courant Sunday night. "I will always champion the cause of Connecticut's and our nation's veterans."
In the statement to the Courant, Connecticut's largest daily newspaper, Blumenthal also said that "at times when I have sought to honor veterans, I have not been as clear or precise as I should have been about my service in the Marine Corps Reserves."
Last Friday McMahon captured the Senate nomination endorsement of state Republicans, but could still face a challenge in Connecticut's August primary.
According to the poll, McMahon leads the GOP primary with 49 percent, with former Rep. Rob Simmons at 23 percent and businessman Peter Schiff at 11 percent. Simmons, who narrowly lost the Republican endorsement to McMahon, suspended his campaign as the survey was being conducted.
"What is surprising is that McMahon gets no bounce from her Republican convention victory. Her negatives went up 13 points from 26 percent unfavorable to 39 percent unfavorable. The more voters get to know McMahon the less they like her," adds Schwartz.
The race is to succeed Sen. Chris Dodd. The five-term Democratic senator announced in January that he would not run for re-election this year. Dodd had been considered one of the most vulnerable Democrats in this November's midterms.
The Quinnipiac University poll was conducted Monday and Tuesday, with 1,159 registered voters in Connecticut questioned by telephone. The survey's overall samplign error is plus or minus three percentage points.
Follow Paul Steinhauser on Twitter: @psteinhausercnn