Washington (CNN) - Half the public says the U.S. doesn't have a responsibility to do something about escalating bloodshed in Iraq, according to a new national poll.
The CBS News/New York Times survey released Monday also indicates a plurality of Americans say President Barack Obama has had the appropriate response so far to the aggressive drive by radical Sunni militants in capturing city after city in northern and central Iraq as they march towards Baghdad.
According to the poll, which was conducted over the weekend, 50% of those questioned say the U.S doesn't have a responsibility to do anything about the fighting, with 42% saying Washington does have a responsibility to get involved.
There's a partisan divide, with a majority of independents and Democrats saying the U.S. doesn't have a responsibility and a majority of Republicans disagreeing.
The survey's release came as Secretary of State John Kerry, in Baghdad Monday, said that U.S. support for Iraq will be "intense" and "sustained," and will be effective if Iraqi leaders unite to face the militant threat.
President Obama's actions
Forty-one percent of those questioned say the President's response to the crisis has been appropriate, with nearly three in 10 saying Obama should do more and 22% saying he should do less. As expected, there's a wide partisan divide on that question, with a majority of Republicans saying the President should do more, and more than six in 10 Democrats saying Obama's had the right response.
The poll also indicates that 44% of Americans say the violence in Iraq will cause the threat of terrorism in the U.S. to rise, with half of those questioned saying it will stay the same.
The CBS News/New York Times poll was conducted June 20-22, with 1,009 adults nationwide questioned by telephone. The survey's overall sampling error is plus or minus three percentage points.
CNN Political Editor Paul Steinhauser contributed to this report