The federal health-care law remains unpopular, a new survey says, even after a surge of enrollments in the health exchanges enabled the Obama administration to exceed its target ahead of the March 31 deadline.

A Gallup poll released Thursday shows that 51 percent of Americans disapprove of the law and 43 percent approve of it. As the following chart shows, those numbers have not moved much from where they were before the enrollment deadline, as well as directly after it.

More than 7 million Americans signed up for coverage under the law -- a victory for the Obama administration that once seemed unlikely given the lagging pace of enrollments.

The new findings reinforce the idea that opinions of the law are pretty firm -- on both sides. In other words, what people think about Obamacare isn't likely to be changed all that much by new developments.