 Russia will not prevail. Ukraine will prevail. The summit comes at a trying moment for Biden's presidency. He says it will be a good way for Americans to judge his ability to be president another four years. Matt Piper, CBS News. ABC's George Stephanopoulos, who interviewed Mr. Biden last Friday, got himself into a little trouble when he responded to someone who approached him on a New York City street and asked... What do you think? Do you think Biden should step down?