Tim Walz, Barack and Michelle Obama, and even Oprah Winfrey have taken to the DNC stage to lay the ground for Kamala Harris’ run for the White House. But have the upbeat and optimistic speeches actually galvanised any support from the rest of America? Harris fundraised four times as much as Trump in July, a whopping $500 million, as supporters were inspired after Biden’s resignation, but can she survive on vibes until election day? Is she the continuity candidate or can she bring anything new to the Oval Office? Tim Walz issued a rallying cry at the DNC, saying “we’ll sleep when we’re dead”, while Michelle Obama warned against being complacent. If ‘Coach Walz’ and ‘Kamala is Brat’ Harris are looking to woo the voters in November, we ask whether a unity message may be needed to harness the vote of undecided Americans.  For this episode of The American Fourcast, Matt Frei is joined at the convention in Chicago by former Obama White House Official Nayyera Haq; Joe Biden’s former chief of staff in the senate Susan Platt; and Channel 4 News’ Washington correspondent Siobhan Kennedy. Produced by Silvia Maresca, Calum Fraser, Shaheen Sattar, Rob Thomson.