Arizona was shaping up to be one of the more unlikely battlegrounds of the 2016 campaign when a political bombshell appeared to explode last week: The Obama administration revealed that the cost of midlevel plans on the Affordable Care Act’s health insurance marketplace here would increase next year by 116 percent on average.
Senator John McCain, running for re-election against the headwind of Donald J. Trump, took the bad news as a gift, highlighting it in a new television ad that begins, “When you open up your health insurance bill and find your premiums are doubling, remember that McCain strongly opposes Obamacare.”
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