The surge for Biden, on the other hand, expresses doubt that a socialist agenda can win over American voters — and concern that as the nominee Bernie would face vicious attacks over his long flirtation with Communism. There will be the video of Bernie at what appears to be a drunken Communist nudist party. There will be his pilgrimages to Nicaragua and Cuba, his fawning praise of Castro and Ortega, his honeymoon in Moscow. The GOP has this material locked and loaded. Meanwhile, the things that can be used against Biden — support for the Iraq war; support for punitive criminal-justice policies in the 1990s — are not likely to hurt him with swing voters or working-class whites.