Former Clinton political hitman James Carville, who recently touted New York Sen. Hillary Clinton for a 2008 presidential run, is reportedly behind an advertising campaign attacking President Bush for his 1990 sale of Harken Energy stock as well as his ties to the oil industry in general. American Family Voices, a group described by the New York Times as "secretive," has paid to run a 30-second commercial on cable news programs in Washington, D.C., and in New York through Thursday. The ad blasts President Bush as "sly like a fox" for talking down his dealings with Harken Energy, which Democrats...