 Ultimately, he told them it will be up to them to show up and vote their conscience. That resonated with conference attendee Stephanie Nathan of California. The theme of this year's conference is all in. And what we're trying to tell people that we need to be all in getting to the ballots in November and focusing on policies and not people. As Biden detailed some of his goals for a second term, the crowd chanted four more years. For NPR News, I'm Yvette Fernandez in Las Vegas.