(CBS) -- Just over a week after U.S. Army Sgt. Bowe Bergdahl was freed by the Taliban, a CBS News Poll shows 45 percent of Americans disapprove of the deal that saw him released in exchange for five Taliban militants, while 37 percent approve of it. About one in five do not have an opinion.
Views differ by political party: most Republicans disapprove of the deal, while just over half of Democrats approve. Among those who have served in the military, 55 percent disapprove of the prisoner swap.
Most Americans -- 56 percent -- say the U.S. paid too high a price to secure Bergdahl's release. Among veterans, that figure rises to 65 percent.
Republicans and independents say the deal cost the U.S. too much, while Democrats are more divided: 42 percent think the terms of the agreement were reasonable, but almost as many -- 39 percent -- say the U.S. paid too high a price.
The president has been criticized by some members of Congress for not informing them of the prisoner exchange at least 30 days before it was carried out, as required by U.S. law.
The administration has defended the decision to move hastily with the swap, arguing there was an urgent risk to Bergdahl's health, and that any leak of the plans could have presented an additional threat to his safety.
The poll finds a clear majority -- 72 percent -- think President Obama should have notified Congress in advance, and that includes 55 percent of people identifying themselves as Democrats.
Historically, CBS News Polls have often shown that Americans prefer a president seek the approval of Congress on military matters.
Some Americans express concern about terrorism amid the release of the Taliban prisoners. The poll shows 49 percent think the prisoner exchange will increase the threat of terrorism against the U.S., while 40 percent say it will have no effect. Only 3 percent say the exchange will result in a reduced threat of terrorism against the U.S.
This poll was conducted by telephone June 8-9, 2014 among 1,013 adults nationwide. Data collection was conducted on behalf of CBS News by SSRS of Media, PA. Phone numbers were dialed from samples of both standard land-line and cell phones. The error due to sampling for results based on the entire sample could be plus or minus three percentage points. The error for subgroups may be higher Results based on the sample of veterans is plus or minus eight points. Interviews were conducted in English and Spanish. This poll release conforms to the Standards of Disclosure of the National Council on Public Polls