A Conservative source said David Cameron had been "clear that we are committed to reducing the cost of politics" and that the Prime Minister had consistently called for "restraint" in MPs' pay.
Labour sources said MPs pay should be "considered in the light of the current economic climate".
We will obviously wait to see what the final proposals are, however, as we have always said, any rise in MPs' pay must be considered in the light of the current economic climate and the cost-of-living crisis facing people across the country.
It must also be seen in the context of the decision to limit or freeze many workers' pay increases in both the public and private sectors.
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"We need to remember the cost of war and the pity of war. We need to remember how we fell in to it."