Polls favour Trump in Biden re-match as both win big in votes to choose Presidential nominee

US President Joseph Biden and his rival for the White House Donald Trump have both swept to more comprehensive victories as part of America’s process to pick the country’s candidates for the election later this year. The two men, vying for the Oval Office again, won the primary votes in four states on Tuesday, with neither facing any major challenge on the ballot having already secured enough delegates to clinch their respective party’s nominations. Our US Correspondent Benji Hyer reports.