Capitol Hill Republicans are getting a much-needed fundraising boost from a newspaper advertisement in which the liberal group MoveOn.org accused Iraq war commander Gen. David H. Petraeus of lying, strategists say. Republican candidates and party committees are citing the ad in fundraising solicitations and campaign materials to attack Democratic opponents for not condemning the ad... Republican party spokesmen say it has been an effective fundraising tool. "The [MoveOn ad] issue is very hot with our base right now," said National Republican Senatorial Committee spokeswoman Rebecca Fisher. "We are using the controversy to reinforce our message that the Democrats in the...