New Jersey Gov. Chris Christie delivers his inaugural address after being sworn in for his second term on January 21, 2014 at the War Memorial in Trenton, New Jersey. (Photo by Jeff Zelevansky/Getty Images)

New Jersey Gov. Chris Christie's (R) approval rating continues to drop quickly amid his bridge scandal, according to a new poll.

The Monmouth University/Asbury Park Press poll shows the governor's approval rating among New Jersey voters is now 50 percent -- down from a high of 70 percent in February 2013 and from 65 percent just two months ago.

It's also down significantly from 59 percent last month -- suggesting that Christie's decline continues even as the scandal has faded somewhat from the news.

Forty-four percent of New Jerseyans disapprove from Christie in the new poll, up from 32 percent last month.

The poll also shows Christie's constituents think he's more interested in his own political future (56 percent) than in being governor (36 percent). And for the first time, a majority -- 54 percent -- says he does not have the temperament to be president.

Half of New Jerseyans say they believe Christie was involved in the politically motivated lane closures in Fort Lee, N.J. -- something Christie has repeatedly denied -- while 40 percent say they don't think he was. A month ago, just 34 percent said they believed Christie was involved -- and increase of 16 points in one month.