The clash comes less than two weeks before the Iowa caucuses, with the latest polls showing Sanders, Biden, Warren, and Pete Buttigieg all within striking distance of victory -- and one another. "I think anyone who looks at the vice president's record understands that time after time after time, Joe has talked about the need to cut Social Security," Sanders said. "He's said it many, many times," Sanders added, "that he believes it appropriate to cut social security or freeze (cost-of-living adjustments) or to raise the retirement age. "The facts are very clear: Biden not only pushed to cut Social Security -- he is on tape proudly bragging about it on multiple occasions," Shakir said. "In trying to cut Social Security, Joe Biden is telling us exactly who he is -- and we should believe him."

Source: CNN January 19, 2020 21:00 UTC