(CNN) - A new poll suggests that a new television ad push by New York Gov. David Paterson's campaign may not be making an impact so far on voters.
A Siena College Research Institute survey released Monday indicates that only 21 percent of New Yorkers have a positive opinion of the job Paterson's doing as governor, with 79 percent holding a negative opinion - a result virtually unchanged from last month.
According to the poll, Paterson trails Attorney General Andrew Cuomo by nearly 60 points in a hypothetical 2010 Democratic primary matchup. That's a wider lead than Cuomo held in last month's survey. The son of former New York Gov. Mario Cuomo has yet to announce if he'll run for governor.
The poll also indicates that Paterson trails former New York City Mayor Rudy Giuliani by more than 20 points in a hypothetical general election face off. He also trails former Rep. Rick Lazio in a 2010 general election matchup for the first time, although the Republican's 3-point advantage is within the survey's 3.5 percent sampling error.
The only positive note for Paterson in the poll: His favorable rating now stands at 33 percent, up 6 points from last month.
Paterson went up on the airwaves 10 days ago with a major ad campaign designed to reintroduce himself to voters: The two commercials highlight his unique biography and address his critics head on. Tracy Sefl, a spokeswoman for Paterson, said the commercials will run for several weeks and constitute a "multi-million dollar" ad buy.
"While the governor's favorability rating saw slight improvement, no other measure of his electability increased noticeably," says Siena pollster Steven Greenberg. "While it's true that the governor's new commercials had only been airing for less than a week while Siena was polling, it seems clear that he's going to have to spend a lot of campaign funds very early to even have a chance of improving the measurements by which voters judge David Paterson."
Paterson was lieutenant governor when a scandal led to then-Gov. Eliot Spitzer's departure from the office in March 2008.
The Siena College Research Institute poll was conducted November 8-12, with 800 registered voters in New York State questioned by telephone.
–CNN's Alex Mooney contributed to this report
Follow Paul Steinhauser on Twitter: @psteinhausercnn