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Many viewers were confused as to why Labour picked Mrs Abbott to go on the business programme, given her notorious record with financial figures.

Diane Abbott suffered a car-crash interview this morning when she faced questions about currency mechanisms and investment strategy.

Diane Abbott suffered a car-crash interview when she faced questions about currency mechanisms

Many viewers were confused as to why Labour picked Mrs Abbott

Mrs Abbott was pressed on whether she ever thought about currencies and the strength of the pound.

She said: "Of course I worry about currency. You have to worry about currency."

The interviewer, who appeared confused by the Labour MP's response, simply replied: "But how?"

The shadow home secretary told Bloomberg: "At times when things are changing, investors do look for the Bank of England for signals of reassurance.

"We will work with Mark Carney and the Bank when we take power of the June 8th."