Here is the problem. "As Medicaid expansion costs increase and Obamacare reimbursements decrease..."
http://www.vaildaily.com/news/regional/dwindling-obamacare-funds-could-hurt-regional-medicaid-transit-program/

The feds promised funding and now have cut back (reneged in actuality) on what they promised insurance companies. 
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2015 [...] The risk corridors were intended to help some insurance companies if they ended up with too many new sick people on their rolls and too little cash from premiums to cover their medical bills in the first three years under the health law. But because of Mr. Rubio’s efforts, the administration says it will pay only 13 percent of what insurance companies were expecting to receive this year. The payments were supposed to help insurers cope with the risks they assumed when they decided to participate in the law’s new insurance marketplaces...
https://www.nytimes.com/2015/12/10/us/politics/marco-rubio-obamacare-affordable-care-act.html