Minnesotans are evenly divided on whether to keep or repeal the federal health care law, with likely voters split sharply along partisan lines, according to a Star Tribune Minnesota Poll.
About 46 percent of the state's likely voters say they support keeping the Affordable Care Act, whose main tenets were largely upheld by the U.S. Supreme Court this summer, while 47 percent believe the law should go.
Support was strongest among voters ages 18 to 34 and those who make less than $50,000 a year. More than eight out of 10 Democrats said the law should stay in place, while nine out of 10 Republicans back GOP presidential nominee Mitt Romney's pledge to repeal it.
About one in five voters sees health care as the most important issue in determining their vote for president, with those who support the law far more likely to name health care as their top issue. The poll of 800 likely voters, conducted Sept. 17-19, had a margin of sampling error of plus or minus 3.5 percentage points.
Bryan Dowd, a professor of health policy and management at the University of Minnesota's School of Public Health, said he's surprised that health care has hung on as a top-of-mind issue for so many Minnesotans.
But with the split so "dramatically partisan," Dowd said he wonders whether the results reflect the health care law itself or whether the measure "has become sort of a clinical marker" for the Obama administration and its critics.
"The results seem to be more about affiliations rather than a deep analysis of the likely effects of the bill on ourselves," Dowd said. "That's particularly true for this bill, most of which hasn't happened yet."
The bulk of the Affordable Care Act doesn't go into effect until 2014, when millions of uninsured people will gain coverage through an expansion of Medicaid or via state-run exchanges.