Former US President Donald Trump's been back in Washington for the first time since he left the White House.

US correspondent Dan Mitchinson told Heather du-Plessis Allan he's been teasing a vision for a run at the presidency in 2024.

He suspects Trump to announce he's running over summer in the absence of any alternatives.

“Who on the Republican side is going to step up? He is still the de facto leader of the Republican Party at this point, which is kind of sad.”

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