The U.S. Chamber of Commerce's political action committee, ChamberPAC, will host a breakfast fundraiser for GOP Senate candidate Dino Rossi July 27 in Washington.

Rossi is seeking the Republican nomination to face Sen. Patty Murray (D-Wash.) this fall. He faces a primary challenge from Clint Didier. 

The Seattle Post-Intelligencer reports that the breakfast fundraiser will cost $1,000 for PAC attendees and $500 for individuals. 

The Chamber has been engaged in lobbying efforts against the financial reform bill currently before Congress, which Murray is backing. Rossi has yet to take a position on the proposed reform.