U.S. officials said Russian social media influencers created and helped amplify fake videos and other false content that alleged abusive conduct by Tim Walz.U.S. intelligence officials on Tuesday said Russians seeking to disrupt the U.S. elections created and helped amplify fake videos and other false content last week that alleged abusive conduct by Democratic vice-presidential nominee Tim Walz. The content, which included false allegations that Walz had acted inappropriately with students while serving as a teacher and coach, was widely disseminated on social media, smearing Walz, the Minnesota governor, ahead of the Nov. 5 presidential election. Walz and the Democratic...