The Democratic chairman of a House investigative committee presented documents to the Pentagon on Thursday alleging that a top Republican fund-raiser, Harry Sargeant III, has made tens of millions of dollars in profits over the last four years because his contracting company vastly overcharged for deliveries of fuel to American air bases in Iraq.
Mr. Sargeant, who is the finance chairman of the Florida Republican Party and a major fund-raiser for Senator John McCain, did not immediately return several messages left for him on Thursday, but in the past he has denied any improprieties on the part of the the company, International Oil Trading Company, known as I.O.T.C.