RENO - Former President Bill Clinton addressed Nevada Democrats on Saturday, giving what was less a campaign speech for his wife Hillary than a call for unity, no matter who the Democrats nominate for president.Clinton told delegates to the convention at Reno's Grand Sierra Resort they must pull together once the nominee is selected "to ensure a victory for the ordinary Americans who desperately need a victory.""Obviously I have a preference in this primary, but here's what I want to tell you: I think it's important as Democrats that we act like Democrats and make it absolutely clear that once …