Some groups in the coalition suggest that a federal mandate may be an unconstitutional interference in state affairs, an argument that appeals to Republicans.

ECONOMIST: Chopping up America’s power | The

This would recognise that moral imperatives might sometimes override the principle of non-interference in a state's internal affairs.

ECONOMIST: Whichever way the wind blows | The

Newspaper bosses have said their proposals would introduce a rigorous system of regulation but keep the press free from state interference.

BBC: Press regulation royal charter delayed by ministers