Hello and welcome to News Hour from the BBC World Service.

We're coming to live from London. I'm Rob Young.

This hour we'll get the latest on the concerns among Democrats over Joe Biden's

re-election prospects would also assess the chances for the latest peace talks to

end the civil war in Sudan and we'll discuss a new study that suggests narcissistic people

become more agreeable with age. Well Joe Biden has just landed in Detroit in the swing state of

Michigan as he tries to persuade Americans to re-elect him

for another term instead of his opponent, the former Republican President Donald

Trump. But Mr Biden is struggling to convince a great number of senior members of his own party

after a couple of faltering performances fuelled concerns over his ability to serve another term.

Nearly 20 congressional Democrats have said in public that Mr Biden should end his candidacy

amid questions over his age and cognitive abilities.

The top Democrat in the House of Representatives, Hakim Jeffries has met Mr. Biden and told his

caucus in a letter that he shared what he called their full breadth of insight, heartfelt perspectives and conclusions about

the path forward with the President.

It's understood Mr. Jeffries, bluntly shared his colleagues views.

The concerns that many Democrats have about President Biden were heightened at a news conference on Thursday night

when he referred to his deputy Carmelah Harris as Vice President Trump.

Look, I wouldn't have picked Vice President Trump to be Vice President

that I think she was not qualified to be President.

So let's start there. Number one. The fact is that the

consideration is that I think I'm the most qualified person to run for

...