Original sentence: Although the Swift Boat Veterans were ostensibly an independent group, their actions provided a political windfall for Kerry's opponent, George W.Its attack ads against Senator Kerry in the 2004 presidential election campaign featured Vietnam veterans claiming that their fellow veteran Kerry was unfit to lead.Specifically, this form of mud slinging is controversial, easily repeatable, and difficult to verify or disprove because it is generally based on personal feelings or recollections.The charges were mostly unverifiable but disseminated widely, which led to swiftboating's reputation for being a controversial but highly effective form of smear campaign
Edited sentence: Although the Swift Boat Veterans claimed to be an independent group, their actions provided a political windfall for Kerry's opponent, George W.In addition several of the allegations were made in direct opposition to previous statements from some of the members of the group.Its attack ads against Senator Kerry in the 2004 presidential election campaign alleged that Senator Kerry was being untruthful in his representation of his military record and was thus unfit to lead.Some of these comments had many factual inconsistencies and left many important details out (such as the Swift Boat Veterans For Truth members' backgrounds and activities during the war).Specifically, this form of mud slinging is often very controversial, easily repeatable, difficult to disprove, and often based on weak (or nonexistent) evidence.This led to Swiftboating's connotation amongst some circles as being a controversial but highly effective form of smear campaign