For the poorest Floridians who rely on Medicaid for their health care, some big changes are coming in the new year that could affect whether they still qualify. Others who currently don't get Medicaid may find that the new rules allow them to sign up. The changes are all part of the Affordable Care Act and affect residents too poor to get a tax break on premiums through the health-care exchange. So whether you apply this year or next could make a big difference. "If you qualify now but won't under the new guidelines, sign up before Jan. 1," said...