"The Government made a promise to the electorate..."

Sure, Stanron. "Made a promise." So let's make a list of "government promises" that never came about. Shall I start? Immigration would be reduced to the tens of thousands. The deficit would be paid off by 2015. Care fees capped at £72000. How long have we got? It's as easy as pie to cherrypick the 'promise" that you agree with. But even the least cynical among us know bloody well that "government promises" don't anount to a hill of beans. Let's hope this one, a promise that Cameron was not entitled to make in any case as he couldn't bind the next administration that might not have been his, goes the same way.