136 Conservative MPs voted against the bill, with 127 voting in favour.
Clegg has a chance to prove the Lib Dems won't be wiped out in 2015 and Cameron a chance to show how the Tories could win a majority.
Conservative MPs use the existence of civil partnerships as an argument against gay marriage but a significant number voted against them in 2004.
It was the dramatic advances in gay rights delivered by the Blair government that made the introduction of equal marriage possible.
Tory MPs see the Education Secretary's politicisation of his department as a case study in how to beat the Whitehall system.
State-backed regulation would be much the best outcome. But Oliver Letwin's proposal of a Royal Charter might just be acceptable.
Lib Dem activists point out that the party has gained seats in recent local elections.
Former Lib Dem Energy Secretary announces that he will resign his Eastleigh seat after changing his plea to guilty following the opening of his trial.
After the PM falsely claimed the coalition "was paying down Britain’s debts", the UK Statistics Authority points out that the national debt has risen by £300bn.
Tory MPs need to remember that just six per cent of voters name the EU as one of the most "important issues" facing Britain.