(CNN) - With just over a month to go until the special U.S. Senate election in New Jersey, a new poll indicates Democratic candidate Cory Booker holds a more than two to one advantage over Republican Steve Lonegan.
According to a Rutgers-Eagleton survey released Wednesday, 64% of likely voters in the Senate special election support Booker, the two-term major of Newark, New Jersey, who's considered a rising star in the Democratic party, with 29% backing Lonegan, the former mayor of the northern New Jersey town of Bogota.
A victory in the October 16 contest would make Booker the first African-American elected to the Senate since Barack Obama in Illinois in 2004. The victor in the election will finish the term of the late Democratic Sen. Frank Lautenberg, who died earlier this year.
Obama backs Booker
Booker's 35 point lead over Lonegan is up from a 54%-38% advantage for Booker in a Monmouth University/Asbury Park Press Poll conducted late last month.
According to the new survey, Booker is winning more than 90% of Democrats while Lonegan grabs the backing of three-quarters of Republicans. Booker holds a 52%-38% lead over Lonegan among independent voters.
"The nearly unanimous party support is a key for Booker," said David Redlawsk, director of the Rutgers-Eagleton Poll. "Democrats seem motivated in this election, and may even be more likely to turn out than Republicans, who are much more split on their candidate."
The poll also indicates Booker benefitting from name recognition and a positive impression (63%), while more than half of likely voters don't know enough about Lonegan to form an impression.
The Rutgers-Eagleton poll was conducted September 3-9, with 433 likely voters in New Jersey questioned by telephone. The survey's sampling error is plus or minus 4.7 percentage points.