A US federal judge has tossed out a lawsuit filed by Paul Manafort seeking to challenge Special Counsel Robert Mueller's authority in the Russia investigation.

The former campaign manager for US President Donald Trump, Paul Manafort, was interviewed twice by FBI agents prior to joining the campaign, according to new court filings.

US President Donald Trump's former campaign chairman Paul Manafort has please not guilty to new charges he acted as an unregistered foreign agent and directed an international money-laundering conspiracy.

Special Counsel Robert Mueller accuses Paul Manafort of secretly paying $2.5 million to European politicians to lobby on behalf of Ukraine.

US special counsel Robert Mueller has gathered enough evidence to bring charges against Michael Flynn in the so-called Russia probe.

Former Trump campaign chairman Paul Manafort and deputy Richard Gates have been put under house arrest.

Revealing emails turned over to US investigators detail how former Trump campaign chairman Paul Manafort attempted to gain favor with a top Russian oligarch close to Russian President Vladimir Putin.

Secret court orders allowed wiretapping of former Trump campaign chairman Paul Manafort's phone in 2016, a report claims.

The FBI has raided one of the residences of Paul Manafort, Trump’s former campaign manager, in hopes of finding new evidence in the so-called Russian “collusion” probe.

A US Republican senator is calling for an interview of President Donald Trump’s son as part of an investigation into Russia’s alleged meddling in the 2016 presidential election.