U.S Vice President, Kamala Harris took a swipe at Donald Trump at her first campaign rally since replacing President Joe Biden as the Democratic presidential candidate, while a Reuters/Ipsos opinion poll showed her taking a marginal lead over her Republican rival. In a 17-minute speech, Harris aggressively went after Trump's vulnerabilities, comparing her background as a former prosecutor to his record as a convicted felon. Here is the latest reporter from the Reuters News Agency.