As Obamacare choices dwindle, feds face consumer, political backlash

Up to 2.1 million people will likely have to change plans for 2017 due to insurers leaving states' Affordable Care Act marketplaces, up from more than 1.2 million who had to find new insurers last year. That doesn't include the millions who bought new plans because they found a better deal.

The new estimates, from data expert Charles Gaba of ACASignups.net, come as another analysis shows five states are expected to have just one company selling insurance on the 2017 Obamacare exchanges. Consumers in most counties in nine other states won't find any competition for their exchange business either, according to the Kaiser Family Foundation.

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