The preference for moderation on health care extends across party lines.  The largest number of both Democrats and Republicans pick the middle ground and think Congress should try to pass more modest reforms.  Republicans are five times more likely than Democrats to say that if the court tosses out the law then Congress should do nothing on the issue.

If the justices toss out only the requirement that all Americans buy health insurance, views split:  43 percent want lawmakers to scrap the whole law because it can't work without the individual mandate and 42 percent want Congress to keep what's left of the law and see what works.

Democrats (63 percent) think Congress should keep what's left of the law, while Republicans (69 percent) say the whole thing has to go.

The Supreme Court is expected to announce its decision on the law Thursday.  

In early June, the Fox poll found 38 percent wanted the Supreme Court to toss out the entire law, and another 21 percent wanted to keep most of the law, but invalidate the mandate for Americans to buy health insurance.