(CNN) – A month after entering New Jersey's U.S. Senate race, Newark Mayor Cory Booker remains far ahead of his rivals for the Democratic nomination.
A Quinnipiac University poll released Tuesday showed Booker at 52% among New Jersey Democratic voters – more than forty points ahead of his closest rival, U.S. Rep. Frank Pallone, who stood at 10%. A third competitor in the Democratic primary, U.S. Rep. Rush Holt, was at 8%.
Booker announced his bid at the beginning of June for the special election held to fill the remainder of the late Sen. Frank Lautenberg's term, which ends January 2015.
Following Lautenberg's death, Republican Gov. Chris Christie appointed an interim senator, Republican state Attorney General Jeffrey Chiesa, to hold the seat until the special election in October. Contestants will compete in party primaries on August 13.
An election to a full six-year term will take place in November 2014.
Polled against the top Republican candidate, former Bogota, New Jersey, Mayor Steve Lonegan, Booker holds a 53%-30% advantage.
"It looks as if the speculation was right: Newark Mayor Cory Booker seems to be a shoo-in for the U.S. Senate," Maurice Carroll, the director of the Quinnipiac University Polling Institute, said Tuesday.
The Quinnipiac University poll was conducted July 2-7 by telephone from 1,068 New Jersey voters. The sampling error was plus or minus 3 percentage points.