One health policy professor said cutting Medicaid and similar programs "will be devastating" to millions of Americans.

Of the $16.4 billion annual Medicaid costs for Louisiana, state taxpayers kick in about $3 billion, according to the Legislature. The new law would halt some of the tools Louisiana uses to pay that $3 billion, requiring the state to pour in extra money or let some people go without health insurance.

A new legislation cutting billions of dollars in federal Medicaid funding could leave one million Floridians without coverage, advocates warn.