30 per cent of MPs support a ban on polling for a "defined period" before general elections, with backing for the proposal strongest among Labour.
A source close to the Lib Dem president says he will vote against the government after party members "expressed their will very strongly against the Bedroom Tax".
The rebel Lib Dem says the policy is "Dickensian in its social divisiveness" and "victimises the most marginalised".
To win back trust, Clegg needs to spend the next 548 days telling voters about his policy guarantees.
The party's announcement that it will hold a Commons vote next Tuesday on scrapping the measure is a test of those in Clegg's party who have condemned it.
If they are to remain the largest party after 2015, the Conservatives need the Lib Dems to win back left-leaning voters in Tory-Labour marginals.
The Deputy PM vowed in his conference speech that the Lib Dems "will keep this government green" - and he meant it.
As long as the Tories are directing their fire at UKIP and trying to attract their core vote back, they will continue to remind everyone that they are the nasty party.
Of the 10 areas that will benefit from a fuel duty rebate, eight are held by Lib Dem MPs.
It looks like the Deputy PM may have known that the security services were about to make another play to bring the Communications Data Bill back.