Anticipating Thursday’s appearance by James Comey before the Senate Intelligence Committee, I spoke with BBC West Midlands about why the former FBI Director’s testimony is a serious political threat to Donald Trump.

Comey builds the case that Trump kept on trying to pressure him to 1) limit the [Trump-Russia] investigation and 2) assure Donald Trump that he was not the target of any inquiry.

The problem is that this is improper. It is not proper to ask the FBI about the status of an investigation, let alone impede it….

When you put Comey’s testimony within the wider context of circumstantial evidence of numerous meetings between people in the Trump campaign and the transition — including Trump’s son-in-law Jared Kushner — with Russian officials there could well be enough to impeach Donald Trump by this time next year.

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