GOP candidates' criticisms of ACA premiums leave out key pieces of health care puzzle

What Republicans such as Trump or DeSantis might try to do with the ACA remains to be seen. A repeal of the law could have far-reaching effects.

"About 55 million Americans would suddenly be uninsured, and insurance companies would once again be allowed to deny health insurance, or charge substantially higher premiums, to anyone with a pre-existing condition," said Gerald Kominski, senior fellow at the UCLA Center for Health Policy Research. "This may be the world ideologues want us to live in, but it would be a public health disaster."