Obama on ObamaCare: 'This thing is working'

President Obama on Thursday announced that 8 million people have signed up for health insurance through ObamaCare's exchanges since they went live in October. That's a significant uptick from the end of March, when just over 7 million people had obtained coverage, which indicates that people are still signing up in droves.

And the president noted that 35 percent of all enrollees were under the age of 35, the demographic most crucial to the law's success. Since younger people tend to be healthier and have lower health-care costs, ObamaCare needs their participation to offset the costs of adding older, sicker enrollees.

"This thing is working," Obama said.

The latest enrollment figures make the prospect of a dreaded "death spiral" — which was already highly unlikely — even more so. And the news comes soon after Gallup found the uninsured rate falling nationwide as a result of ObamaCare, and on the heels of a CBO report projecting the law would cost $104 billion less than anticipated over the coming decade.

"The repeal debate is and should be over," Obama said.