SALEM, Ore. -

Secretary of State Kate Brown announced Thursday that Oregon received an "A" grade in a national scorecard of state campaign finance disclosure requirements for independent expenditure groups. 

"I'm proud that Oregon continues to lead the nation in campaign finance transparency," Brown said. "At the same time, we need to take additional action to bring special interest groups and their anonymous, last-minute attack ads out of the shadows."

The National Institute on Money in State Politics and the Center For Public Integrity co-released a new report and scorecard Thursday on the status of independent spending reporting requirements in the 50 states. Oregon was one of just nine states to receive a perfect score.

Secretary Brown urged the Legislature to further improve campaign finance transparency in Oregon by enacting House Bill 3523, co-sponsored by Rep. Alissa Keny-Guyer, D-Portland, Rep. Greg Matthews, D-Gresham, Rep. Julie Parrish, R-West Linn, and Rep. Bob Jenson, R-Pendleton.

HB 3523 would require all contributions over $1,000 to be reported within 48 hours in the 14 days prior to the election; require independent expenditure campaigns to file electronic campaign finance reports in Oregon's online campaign finance reporting database; and improve reporting of in-kind contributions.