Time running out to sign up for ACA health care plans FacebookTwitterEmail As COVID-19 spreads uncontrolled in many places, a coalition of states, health care groups and activists is striving to drum up “Obamacare” sign-ups among a growing number of Americans uninsured in perilous times.U.S. Centers for Medicare & Medicaid Service via AP As COVID-19 surges through the nation, health care advocates are issuing last-minute reminders urging Americans to sign up for insurance through the federal health exchange before Tuesday’s deadline. And with the pandemic causing thousands to lose their jobs — and their health insurance — the need is even greater than in past years.