New York Sen. Hillary Clinton charged Friday that President Bush employed racist tactics during his primary battle against Arizona Sen. John McCain, while warning that the resignation of Senate Majority Leader Trent Lott would not "cleanse the Republican Party of their constant exploitation of race." "The campaign for then-Governor Bush in South Carolina had a huge outreach effort to say [McCain] adopted a black baby," Clinton complained to reporters, a reference to leaflets that were circulated about McCain's dark-skinned daughter while Bush was fighting for his political life after losing the New Hampshire primary. "I mean, what [Lott] did was...