new york u.s. state negotiate bitter end keep health insurers sell obamacare plan every county next year case take hard-line prevent exit leave residents without access health coverage state rule last-minute pullout insurance company insurers must sign government contract detail offer 2018 coverage midnight wednesday recent months dozens u.s. counties risk insurer offer subsidize individual insurance next year national players include anthem inc aetna inc humana inc announce plan pull tmsnrt.rs/2k1halv many insurers lose money obamacare business others fear exposure program target president donald trump republican-controlled congress repeal trump also threaten cut billions subsidy payments insurers undermine predecessor barack obama healthcare law still insurance commissioners republican-leaning state tennessee missouri virginia spend months negotiate insurers see might pull market either convince stay find replacement tuesday appear succeed keep every county cover state individuals still face challenge nearly half u.s. counties choice one insurer offer individual plan many insurers file price hike 20 percent offset political uncertainty state still fear last-minute surprise colleagues still concern today insurers make decision whether participate tennessee insurance commissioner julie mcpeak say make us nervous humana say would exit obamacare business entirely leave knoxville area insurer blue cross blue shield tennessee say would step region georgia regulators warn anthem could sell state five years leave bare counties deputy insurance commissioner jay florence say result first propose stay one county next year anthem leave market georgia could sure least one insurer offer coverage virginia anthem plan exit would leave 60 counties without individual insurance options change course two weeks ago discussions state bare counties highly political issue health plan concern consequences call publicly say caroline pearson senior vice president healthcare consultancy avalere health scant competition high price push could preserve competition many state 2018 nearly half u.s. counties one insurer offer individual plan accord federal data 2017 third counties one insurer 2016 percent counties single choice convince alter plan molina healthcare say july would exit two state consider departures end remain seven state sell individual plan include california florida michigan new mexico ohio texas washington spokeswoman say tuesday cigna corp plan sell obamacare coverage six state 2018 say make final detail public deadline anthem healthcare service corp run blue cross blue shield illinois texas state comment plan insurers wade 2018 obamacare market certainty program fate senate republicans tuesday fail muster enough vote repeal replace 2010 affordable care act vow revive effort come months tackle tax reform state health commissioners allow propose monthly premium increase 20 percent even 2017 compensate uncertainty really much choice mcpeak tennessee say fearful insurers file low rat would decide come market 2018 obamacare deadline near u.s. state believe every county cover