Republican leaders in Albany are threatening impeachment if Democratic Governor Elliot Spitzer doesn't resign in 48 hours. Assembly minority leader James Tedisco says he's already promised Republican support if Lt. Gov. David Paterson assumes the governorship. Paterson is a Democrat from Harlem who's legally blind. But Spitzer has his defenders, including Alan Dershowitz from Harvard Law School, where Spitzer served as his research assistant. The renowned constitutional scholar, who called the entire matter "overblown," said history "has proved that people can govern well during the day while acting as children and adolescents in the evening." Will sexual misconduct end a career that might have led to the White House?