The state would pay for stem cell research, including studies using cells harvested from embryos, under a bill filed in the Florida Legislature.
It may have new hope because of backing from Gov. Charlie Crist.
The proposal has failed before, but its chances may be enhanced this year with the support of Crist, who said Tuesday the issue is one of his budget priorities.
Crist says he backs it because of the promise it has for possibly curing diseases.
The bill would require the state spend at least $20 million a year on stem cell research for 10 years.
It would back experiments using adult, amniotic and embryonic stem cells.