Vice President Mike Pence may have just picked another fight with pharmaceutical companies — one that doesn't involve drug prices.

Pence is pushing for a nationwide law that would give terminally ill patients expanded access to experimental drugs that haven't been approved yet but have made it through the first of three approval phases.

The vice president had championed the so-called right-to-try issue while governor of Indiana and later on the campaign trail. While dying patients may be willing to try anything, wider access to unproven treatments may give them no more than false hope, opponents to the proposal say. And if patients have adverse reactions, that may put a premature halt to the clinical trials necessary to show drugs' effectiveness. Drugmakers have resisted providing experimental medications under state right-to-try laws that have been passed in more than half of the states, including Indiana.