Video: Wealthy should make 'a greater contribution' through mansion tax says Nick Clegg Pressed on whether, as Mr Cable claimed, there were Conservative supporters for the plan, Mr Clegg would only say that he felt their was a wide consensus that the tax system needed to be made fairer. "The tax system shouldn't be constantly catering for the very small fraction of people at the top," said Mr Clegg' "it should be there standing up for the vast majority of people in this country."