Oregon's Obamacare spending is still under scrutiny.

Eight Republican members of the U.S. Senate Committee on Finance, led by Sen. John Cornyn (R-Texas), complained in a Dec. 15 letter to the federal Centers for Medicare & Medicaid Services (CMS) that Oregon's health-insurance exchange may be "continuing to misuse federal funds."

The issue in Oregon and four other states: the use of federal money for operational expenses, rather than for the technical infrastructure for the exchanges.

Lisa Morawski, a spokeswoman for the state Department of Consumer and Business Services, which runs what used to be called Cover Oregon, says the state's program is now funded by members.

But she acknowledges that two previous federal grants to Cover Oregon, totaling $830,000, may have been used improperly. "We continue to work with CMS to resolve these issues," Morawski says.