 ABC News, I'm Brian Clark. 60% of respondents in an ABC News Ipsos poll call on President Biden to drop out of the presidential race. Congressman Ro Khanna is a Biden campaign surrogate, and the California Democrat tells ABC this week the decision is the president's to make, but if he were to exit, Vice President Kamala Harris is the only logical replacement. The vote is on August 7th. I believe that the vice president would win that vote. I don't think you're going to see many people challenge her.