Washington (CNN) - Nearly six in ten Americans say they approve of the sanctions the United States and the West have placed on Russia, but they don't expect the sanctions to be effective, according to a new national survey.
And a CBS News poll also indicates more people disapprove than approve of how President Barack Obama has handled the crisis, and a majority of the public feels the situation in Ukraine is beyond America's control and that the U.S. doesn't have a responsibility to get involved.
According to the poll, 56% of the public, including a majority of Democrats, independents and Republicans, say they back the sanctions, with 32% saying they disapprove. But 58% say they don't think the sanctions will be very effective, or effective at all.
In what has become the biggest East-West confrontation since the Cold War, the U.S. and European Union imposed visa bans and asset freezes on some of Russian President Vladimir Putin's closest political and business allies. Russia responded with its own list of sanctions against a number of U.S. lawmakers and officials.
The G7 group of leading industrialized countries has condemned both the Crimean vote to secede and Russia's annexation of Crimea, which was an autonomous region of Ukraine with a large pro-Russian population. Moscow has now been excluded from what was the G8. Russia had joined the G7 group in 1998 to form the G8.
The President's performance
Thirty-eight percent of those questioned in the survey, which was released Tuesday, say they approve of how the President's handling the crisis, with 46% giving Obama a thumbs down and 16% unsure.
The President on Tuesday defended his response to Russia's military led annexation of the Crimean peninsula and noted that Moscow could face further sanctions should Russian forces invade other parts of Ukraine.
"Russia is a regional power that is threatening some of its immediate neighbors," Obama said, adding Moscow's actions are "not out of strength but out of weakness."
He argued the fate of Crimea is "not a done deal," even as he agreed Russia controls the situation on the ground.
Does U.S. have responsibility?
Nearly six in ten questioned in the poll say the conflict between Russia and Ukraine is beyond U.S. control, and just over six in ten say America doesn't have a responsibility to do something about the crisis. Nearly two-thirds say Washington should not provide military aid and equipment to the government in Kiev.
The survey, along with a recent CNN/ORC International poll, indicates a shift in perceptions about Russia. Forty-two percent of Americans consider Russia an ally or friendly country, down from 80% back in 2003, with 51% describing the country as unfriendly or an enemy, up from 12%.
Forty-three percent say that America's image in the world has degraded since Obama became president, with 32% saying the country's international image has improved, and one in five saying there's been no effect.
The CBS News poll was conducted March 20-23, with 1,097 adults nationwide questioned by telephone. The survey's overall sampling error is plus or minus three percentage points.
CNN Political Editor Paul Steinhauser and CNN Senior White House Correspondent Jim Acosta contributed to this report