Didn't Clinton endorse the Governor of Virginia in that race? Sadly, I think the Clintons have more power with the moderate electorate than with the liberal one. Where they endorse moderate candidates with liberal voters - they get nothing (see Lamont). But where the audience is moderate, their voice carries.
Of course, the more press Hillary gets - the more likely she will run. If she does, we could probably run Mark Foley for President and win.