capped his abrupt rise from political obscurity to global prominence as he accepted the Democrats’ vice presidential nomination with a vow to "turn the page" on Donald Trump. The Minnesota governor was barely known outside his state just a fortnight ago, when he was chosen as running mate by Kamala Harris, herself a surprise presidential candidate following Joe Biden’s dramatic exit. Addressing the in Chicago, he was supported by A-list performers and , while an equally stellar cast of warm-up speakers included and .

He was joined on stage by his wife and two children. The exuberance of 17-year-old son Gus Walz, who yelled “that’s my dad” and burst into tears, went viral on social media and underlined the former high school teacher’s everyman appeal. "We're all here tonight for one beautiful, simple, reason: We love this country," Mr Walz, 60, said.

"Thank you for bringing the joy to this fight," he said, adding: “We’ll turn the page on Trump.” The VP nominee leant on his experience in coaching a chronically underperforming American football school team to winning their league, as he gave a “pep talk” to the cheering party faithful. “Let me finish with this, team,” he said.

“It’s the fourth quarter. We’re down a field goal. But we’re on offense and we’ve got the ball.

” He said Democrats have to do the “blocking and tackling”, making phone calls and knocking on doors every day until the election on November 5. “There will be time to .