A year after President Barack Obama's political honeymoon ended, his job approval rating has dropped to a negative 44 - 48 percent, his worst net score ever, and American voters say by a narrow 39 - 36 percent margin that they would vote for an unnamed Republican rather than President Obama in 2012, according to a Quinnipiac University poll released today.

This compares to a 48 - 43 percent approval for Obama in a May 26 national poll by the independent Quinnipiac (KWIN-uh-pe-ack) University and a 57 - 33 percent approval last July, just before the political firestorm created by opposition to his health care plan galvanized political opponents and turned independent voters against him.

In this latest survey of more than 2,000 voters, independent voters disapprove of Obama 52 - 38 percent and say 37 - 27 percent they would vote for a Republican contender in 2012.

American voters also say 48 - 40 percent Obama does not deserve reelection in 2012.

Anti-incumbent sentiment slams both parties as voters disapprove 59 - 31 percent of the job Democrats are doing, and disapprove 59 - 29 percent of Republicans in Congress. But voters say 43 - 38 percent they would vote for a Republican in a generic Congressional race.

American voters say 42 - 32 percent that Obama has been a better president than George W. Bush, similar to the 43 - 30 percent who felt that way in January of 2010.