Latest: Paul Manafort and Rick Gates plead not guilty to all charges

Latest: Former Donald Trump campaign chairman Paul Manafort and his business associate, Rick Gates, have pleaded not guilty to all charges.

Manafort

Update 6.30pm: Donald Trump's ex-campaign chairman Paul Manafort and a former Manafort business associate, Rick Gates, have been indicted on felony charges including conspiracy against the US.

They have pleaded not guilty to all charges, which also include acting as an unregistered foreign agent and several financial counts involving tens of millions of dollars routed through offshore accounts.