A campaign finance dust-up that roiled the final weeks of Minnesota's epic 2008 Senate campaign apparently isn't quite over.

Former FBI Director Louis Freeh planned to hold a news conference Tuesday to announce a new development in a dispute whether his client, Minnesota businessman Nasser Kazeminy, tried to improperly funnel $75,000 to the family of former Sen. Norm Coleman through a Minneapolis insurance company that employed Coleman's wife, Laurie.

The allegation, which may have contributed to Coleman's loss to Sen. Al Franken, sparked a blizzard of investigations and lawsuits. Both Coleman and Kazeminy vehemently denied the accusations.

"Everyone in the world investigated this thing, but there's an important piece still hanging," said Minneapolis attorney Ron Rosenbaum, who's also involved in the case but declined to discuss specifics. "This is a major announcement about the case."