“The big question is: What is going to be put forward as an alternative and how palatable will that be to consumers, lawmakers, the healthcare industry?” KFF Health News senior correspondent Julie Appleby tells Vox’s Today, Explained. | Stefani Reynolds/Bloomberg via Getty Images Health insurance enrollment through the Affordable Care Act is plummeting. Nearly 3 million fewer Americans now have insurance through the program, popularly known as Obamacare, compared to last year, according to federal data released in June. After congressional Republicans allowed enhanced subsidies for th...