After a summer of tough negative ads, and a recent series of contrast ads, Gov. Jon Corzine (D) is up with a new, one-minute positive spot in which he makes his case to voters for a new four year term.

Corzine says he's taken on more tough issues "in the toughest environment" since the Great Depression, and touts administration accomplishments on the budget, health care and the environment.

"But there's more to do. It's a work in progress," he says. "I've learned a lot. I've done a lot. And I think we can do a lot more."

Also today, the Republican Governors Association launches a new 15-second ad that recalls a line form Corzine's inaugural address, "Hold me accountable." It then cites a the economic problems and high property taxes in New Jersey, closing with their verdict of Corzine's term: "Tax, waste, debt, failure."