The troubled families scheme is about "trying to break a cycle of depravation that has crossed generations", according to the Communities and Local Government Secretary.
Speaking to Daybreak, Eric Pickles said Bradford Council were still dealing with the same families as he had been dealing with 25-years-ago, when he lead the West Yorkshire local authority.
Troubled families were "a great drain on the nation" and cost the taxpayer "£9 billion a year - £8 billion of which is just reacting to them", he added.
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Accompanied by the Duke of Edinburgh, the Queen will attend the opening ceremony of the fifth session in the Holyrood chamber.
Ms Leadsom has received the backing of Ian Duncan Smith, the former work and pensions secretary.
The former shadow work and pensions secretary is considered a more viable candidate than Angela Eagle, a Labour source has told ITV News.