"Always," a new ad, responds directly to Biden's primary rival Sen. Bernie Sanders, who has ramped up his criticism of the former vice president on the campaign trail and recently launched an ad in the upcoming primary contests hitting Biden on his social security record. "Bernie Sanders goes on the attack," a narrator says. "Politifact has called the Sanders campaign attacks false." It continues to defend Biden's record on social security. "Joe Biden has always been a strong supporter of social security. Biden will increase Social Security benefits and protect it for generations to come."