“You bet I voted for that bill. I’m proud I did it!” yelled Russ Feingold at a Wisconsin campaign stop in 2010. That pride—in ObamaCare—lost the three-term Democratic senator his job. Now his party’s ownership of the health-care law may once again decide the Senate.

ObamaCare is roaring back as a political liability to Democrats in a way not seen since that 2010 wave election. Right in time for this fall’s presidential contest, insurers are bailing out of the government system, leaving millions of voters with dwindling options and skyrocketing premiums. ObamaCare was always destined to crack up, but there is something notable that it comes precisely as so much control of Washington is up for grabs.

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Progress in reducing the number of people without health insurance in the U.S. appears to be losing momentum this year even as rising premiums and dwindling choice are reviving the political blame game over President Barack Obama’s health care law.

The future of the Affordable Care Act hinges on the outcome of the presidential election, and it’s shaping up as a moment of truth for Republicans.

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Floridians who buy their own health insurance in 2017 are likely to see their premiums rise by an average of 19 percent over the current year, according to an analysis released Friday by the state’s Office of Insurance Regulation.

The average increase calculated by the state applies to all health insurance plans sold in Florida next year that comply with the Affordable Care Act’s minimum coverage requirements, whether those plans are sold on the ACA exchange at HealthCare.gov or off of it.

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Under the ACA, health insurance marketplaces, also called health exchanges, were set up to facilitate the purchase of health insurance in each state. Customers are free to choose from a set of standardized healthcare plans from participating insurers, and those policies are eligible for federal subsidies.

But insurers have been fleeing the exchanges, arguing that they are loss makers and the types of people attracted to them make the risks too great for the insurers to provide affordable (and profitable) policies.

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