washington u.s. congressional budget office wednesday say repeal obamacare individual mandate health insurance would increase number uninsured 13 million 2027. cbo nonpartisan budget-scoring agency say statement website eliminate mandate affordable care act also often dub obamacare would also raise average premiums individual market 10 percent annually next decade say early wednesday repeal mandate would low deficit 338 billion next decade cbo estimate end obamacare mandate would increase uninsured premiums