A leading group opposing Minnesota DFLers has launched its first television advertisement attacking Gov. Mark Dayton and the state's health-insurance exchange.

The 30-second advertisement ties President Obama's health-insurance overhaul to the troubled launch of the state's health-insurance exchange, MNsure.

"Barack Obama and Mark Dayton promised Minnesotans that Obamacare would help make things better," said Ben Golnik, chairman of the Minnesota Jobs Coalition. "MNsure remains a mess defined by missed goals, lost policies and bonuses for executives who failed in their jobs. Dayton is so out of touch with Minnesotans he even claimed Obamacare was working 'phenomenally well.'"

Dayton's campaign dismissed the ad as misleading.

"The reality is that today more Minnesotans than ever have access to quality health care at the lowest rates in the nation — with MNsure reducing the number of uninsured Minnesotans by 40 percent in its first year," said Dayton campaign manager Katharine Tinucci, citing a new University of Minnesota study.

Golnik said his group will spend somewhere around $50,000 to run the ad statewide on cable and digital broadcast. That is generally not enough money to give the ad significant statewide reach.

BAIRD HELGESON