Concerns over dumping Obamacare growing among GOP lawmakers

Republicans are increasingly jittery over rushing to demolish much of President Barack Obama's health care law without having a GOP alternative that's ready to go.

While nothing about revamping the nation's $3 trillion-a-year health care system will be easy, Republican leaders want congressional committees to have legislation dismantling much of Obama's overhaul ready by late January. They're hoping Congress can quickly send a measure to incoming President Donald Trump phasing out the law, perhaps a couple of months later.

Crafting a GOP replacement is likely to take longer, thanks to Republican divisions and solid Democratic opposition. With 20 million Americans now covered under Obama's law, one political nightmare for Republicans would be repealing the statute and then proving unable to pass a new version.