As New Jersey’s premier GOP fundraiser, former Republican National Committee Finance Chairman Lewis Eisenberg has some clout at the White House — especially as a Republican from a state where his party is in the clear minority. But for reasons that different people explain in different ways, Eisenberg has not been at all engaged in Tom Kean, Jr.‘s race for the United States Senate. Now that the race is close — national Republicans are increasingly talking up New Jersey (which hasn’t elected a GOP U.S. Senator in 34 years — there may be some pressure on Eisenberg to help Kean narrow incumbent Robert Menendez’s huge fundraising advantage. If Kean wins, the former Governor’s son will become the state’s top Republican — at least in the eyes of the White House. And if Kean’s victory comes without Eisenberg’s help, Eisenberg will see his influence in national politics greatly diminished.