Historically, it has proven exceedingly difficult to maintain alliance discipline on insisting on real and parallel progress in all three areas.

CENTERFORSECURITYPOLICY: Center For Security Policy

Speaking to the Today programme he said that putting poor people in expensive areas does not create mixed communities but rather "parallel" ones and explained that if more social housing is built, "we can pepper pot it amongst other communities".

BBC: Social housing: 'No right' to live in expensive areas