Today, Sam Stein at Huffington Post reported that the FBI has been investigating former Minnesota Senator Norm Coleman's ties to his benefactor, Nasser Kazeminy.  Stein talked to one witness who was interviewed by the FBI -- and even had copies of the agents' business cards:

The FBI is investigating allegations that former Senator Norm Coleman had clothing and other items purchased on his behalf by a longtime friend and businessman Nasser Kazeminy, according to a source in Minnesota who was interviewed recently by federal agents.

E.K. Watkins, a spokesman for the Minnesota FBI, would neither confirm nor deny the report. The source provided details of the interview to the Huffington Post, in addition to copies of business cards left by the agents.

The FBI has also been conducting interviews in Texas, according to media reports, in regards to different allegations that Kazeminy tried to steer $75,000 to Coleman through his wife's employer. Up to this point, there have not been reports of any FBI work taking place in Coleman's home state.

The Minnesota source said the FBI questioning focused on whether Kazeminy had purchased clothing on Coleman's behalf, reports of which surfaced in October. At the time, Coleman vehemently denied the allegations. "Nobody but me and my wife buy my suits," he said.