But Lib Dem Foreign Office minister Jeremy Browne said on Tuesday that they were "part of the same constitutional package".

BBC: David Cameron to press ahead with boundary changes plans

He repeated his intention to vote against the implementation of changes to MPs' constituency boundaries, saying reform to the Lords and the Commons were part of the same "constitutional package".

BBC: UK Politics

Hungary's parliament has adopted a package of constitutional changes proposed by the ruling Fidesz party which critics say undermine democracy.

BBC: Hungary defies critics over change to constitution