WASHINGTON • US President Donald Trump broke his silence on former FBI director James Comey's testimony to Congress in the Russia probe, accusing him in a tweet of lying under oath and calling him a "leaker".

But his decision to weigh in personally yesterday could come with political risk for Mr Trump.

Mr Comey, who was fired by Mr Trump last month, testified on Thursday that he felt uncomfortable with the nature of his personal meetings with the President.

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