The plight of more than a million uninsured people in five red states hangs in the balance in November. Each state has refused to expand Medicaid through Obamacare under a Republican governor. Each is facing a stiff challenge from a Democratic opponent who supports Medicaid expansion. So much is riding on the outcome of those races that in two of the states Republican legislatures fearful of Democratic victory have passed laws reining in the power of the governor to unilaterally expand Medicaid. Dylan Scott reports.