Fifty percent of Americans have unfavorable views of the law, according to a joint survey by the Kaiser Family Foundation and the Harvard School of Public Health. Opposition to the law jumped 9 percentage points from last month and is the highest since April, when Kaiser began asking the question every month.

At the same time, only 33 percent of respondents like the idea of defunding the legislation, and 62 percent disapprove.

The poll results show just how difficult a dance Republicans could have ahead of them: While the reform law isn’t popular, neither is their time-consuming and difficult plan to repeal it piece by piece.