Bloomberg BNA:

Although the case involved a Democratic candidate, it was dismissed due to the votes of the three Republican commissioners on the six-member FEC. The Republican commissioners have been reluctant to support enforcement actions based on charges of illegal coordination between candidates and others.

The state party and Lampson’s campaign didn’t deny coordinating their activities, according to a report from the FEC general counsel’s office, but they argued that the mailings were exempt from disclaimer requirements because of a special provision of campaign finance law, known as the “volunteer materials exemption.” The counsel’s report recommended the FEC pursue enforcement action, but the FEC commissioners deadlocked in a vote taken last January on how to handle the case.