Damian McBride compared his activities as Gordon Brown's spin doctor to those of a "rogue trader in the 1980s", saying Labour leaders were unaware of the way he operated.
McBride told ITV's Daybreak: "I'd compare it to when we had some of the rogue bankers ... people weren't asking enough questions about how they were making their profits."
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Daughter whose mother was left for hours on a hospital trolley in A&E has campaigned tirelessly for change - and with some success.
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Sinkhole causes two lanes to collapse but luckily no injuries have been reported.