Boris Johnson’s answer to the question of whether Joe Biden is ‘woke’ was revealing

In the prime minister’s case, the question drew out his split political personality, writes Andrew Woodcock

Boris Johnson struggled to answer the question about Joe Biden (Getty)

Political journalists sweat blood trying to hone the perfect question that will winkle out the truth from an evasive politician.

But often, it’s the simple ones which deliver the real surprises. A seemingly innocent inquiry about an everyday issue can catch out politicians who have been briefed within an inch of their lives to avoid letting anything slip on the economy or public services or diplomatic relations.

A prime example is the question thrown at Boris Johnson in the middle of a TV interview on Wednesday: is Joe Biden “woke”?