Health insurance CEOs are getting nervous about what could happen if Republican Mitt Romney wins the White House.
Although the industry hates parts of President Barack Obama's health care law, major companies such as UnitedHealth Group and BlueCross Blue Shield stand to rake in billions of dollars from new customers who'll get health insurance under the law.
The companies already have invested tens of millions to carry it out.
Insurers would be in for months of uncertainty as a President Romney attempts to repeal the law. Also, federal and state governments and the health care industry face a rush of legal deadlines for putting it into place.