Trump may 'terminate' Russia probe investigator, says president's pal

As special counsel Robert Mueller builds his legal team, Mr Trump's allies have begun raising questions about the former FBI director's impartiality.

High-profile supporters of Donald Trump are turning on the man investigating Russian interference in the US election and possible collusion with the president's campaign - with one suggesting Mr Trump was considering "terminating" him.

As special counsel Robert Mueller (pictured) builds his legal team, Mr Trump's allies have begun raising questions about the former FBI director's impartiality, implying he cannot be trusted to lead the probe.