(CNN) - A new poll spells more trouble for New Jersey Governor Jon Corzine's bid this year for re-election.
Fifty-four percent of New Jersey voters questioned in a Quinnipiac University survey released Wednesday disapprove of how Corzine's handling his duties as governor. That's the highest disapproval ever registered of a Garden State governor in Quinnipiac polling.
Corzine's disapproval rating jumped four points from March. Thirty-seven percent of those questioned think Corzine's doing a good job, down three points from last month.
While a majority of Democrats approve of Corzine's job as governor, he gets negative scores from a majority of independents and a vast majority of Republicans.
In hypothetical match-ups this November, the poll indicates Corzine trails Republican challenger and former U.S. Attorney Christopher Christie by seven points and is tied with another Republican challenger, former Bogota, New Jersey Mayor Steve Lonegan.
The poll suggests that Christie leads Lonegan in the Republican primary battle by nine points.
"The economy is killing Gov. Jon Corzine's approval rating in New Jersey so much that he is vulnerable not only to a strong challenger such as Chris Christie but a lesser known Republican such as Mayor Steve Lonegan," said Clay F. Richards, assistant director of the Quinnipiac University Polling Institute.
New Jersey and Virginia are the only states with gubernatorial contests this November. Democrats are defending both seats. In Virginia, the incumbent, Governor Tim Kaine, is term limited. Republicans are eyeing both seats and would tout victories in New Jersey and Virginia as sign of revival leading in the 2010 midterm elections, when 36 states hold gubernatorial contests.
The Quinnipiac University poll was conducted April 14-20, with 2,222 registered New Jersey voters questioned by telephone. The survey's sampling error is plus or minus 2.1 percentage points.