washington republican donald trump name national finance chairman presidential campaign thursday pick investor little experience campaign long history political donations include trump likely democratic opponent hillary clinton steven mnuchin former partner goldman sachs work entertainment finance chairman ceo private investment firm dune capital management lp take one first high-profile job campaign trump fill trump real estate developer week become presumptive republican presidential nominee november election work mnuchin business capacity campaign say since 1998 mnuchin give 71,000 democrats associate committees compare 37,000 republicans since hillary clinton campaign elect u.s. senate 2000 mnuchin donate 7,400 clinton accord federal election commission also give 10,000 democratic senatorial campaign committee 2004. recently mnuchin donate republicans include 22,500 2012 mitt romney joint fundraise committee another 4,800 former republican nominee campaign history donations democrats may well add distaste trump among establishment republicans oppose billionaire rise likely presidential nominee ground proposals truly republican trump say wednesday begin raise money general election bid self-funding majority primary campaign fundraise require balance especially since much trump campaign message rest refusal raise money decision self-fund campaign party nominate contest historically political party depend ability nominee raise money order fund operations include work elect members house senate trump say work closely republican national committee already fundraise operation help campaign members party nov. election u.s. representative chris collins new york first lawmaker endorse trump say move start raise money help bring party together see pivot general election unite party fundraise big part unite party influence money elections days collins tell reuters interview republican trump 's new finance chair previously donate democrats