and last night they enchanted the Democratic Party National Convention in Chicago.

They took the fight to Donald Trump. And they did it with glee. They were laughing in the face of the Republican nominee.

So how important will Barack and Michelle Obama be for Kamala Harris' campaign? Can they move the dial further in the Democrats favour and help ensure election victory in November?

Editor: Tom Hughes

Producers: Natalie Indge & Rory Symon

Digital Editor: Michaela Walters

Social Media Editor: Georgia Foxwell

Video Production: Rory Symon & Shane Fennelly

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1d:T4a4,Labour used to be the party that leapt to the defence of the BBC. So why was the Culture Secretary this weekend calling for heads to roll, saying she was "exasperated" at the broadcaster, and refusing to express confidence its director general Tim Davie? The BBC has admitted to failings in its Glastonbury coverage, which saw it stream one act chanting "death to the IDF" - despite the corporation later admitting it had deemed them "high risk" before the festival. But those admissions don't appear to have satisfied the government. Is Labour falling out of love with the BBC? And should the BBC be worried? Jon and Emily discuss with Sir Craig Oliver, former BBC News editor turned Downing Street director of politics and communications.Later, on the twentieth anniversary of the 7/7 bombings, which killed 52 people, injured more than 700, and led to the largest criminal investigation in British history - have we learnt the lessons from the tragedy? Yasmin Khan, a human rights campaigner

The Obamas electrify the DNC