There's uncertainty over US presidential debates, as the candidates can't agree on a time and place.
Donald Trump and Kamala Harris are at odds after Trump pulled out of a scheduled ABC debate, instead proposing a Fox News debate.
Harris has declined, claiming Trump's trying to back out.
US correspondent Mitch McCann says the candidates are now feuding on social media.
"He posted on social media - I'll see her on September 4 or I won't see her at all. Kamala Harris has hit back saying - it's interesting how any time, any place becomes one specific place."
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