 I'm Linda Kenyon. The Biden administration and the campaign continue to push back on calls from Democrats who are concerned the president won't be able to defeat former President Trump. Meanwhile, Biden is stepping up his reelection activities. Here's CBS's Natalie Bradd. His campaign is touting an aggressive next phase with more travel, interviews, and what they're calling off-the-cuff moments. But already, there's new controversy over two recent radio interviews in which questions were provided in advance.