Martha Kearney just nailed Nick Clegg (again). This time he's claiming he knows how much money will be brought in by removing various tax loopholes, but doesn't know how many people will be affected. He then comes up with a figure of 10%, but when pressed, can't tell Martha how many people 10% of taxpayers is.
Oh dear. A bit cavalier with other people's money is Nick (remember the pension-value mistake?). Maybe numbers aren't his forte.