How will David Cameron handle battle with the House of Lords over tax credits?

We might find out a little more on Tuesday on how David Cameron plans to execute his war with the House of Lords.

Immediately after the upper chamber inflicted a painful defeat on the Government on Monday night, Downing Street was promising a "rapid review" of their powers.

The "convention has been broken" went on Number 10 - referring to the precedent that the unelected Lords do not overturn financial decisions made by elected MPs in the Commons.

Quite what David Cameron's review will conclude is another matter.

David Cameron is facing a battle with the House of Lords. Credit: PA

Stuffing the Lords with 150 new Tory peers in the wake of a defeat on the plan to cut working benefits to the lowest paid people, does not, to me, sound like a winning political strategy.

I suspect they may settle on some way to codify which parliamentary measures are financial and which are not.

There was lots of debate in the Lords on Monday about whether the tax credits plan was a "financial" or "welfare" measure.

You can argue it either way (and their lordships did): cutting tax credits is a welfare change but - given they saved £4.4 billion - they were central to the Government's fiscal plans on which it was elected.

On the measure itself - the cuts to tax credits - expect more heat than light on Tuesday.

We have Treasury Questions this morning and Shadow Chancellor John McDonnell will no doubt wish to remind George Osborne of his defeat.

But the Chancellor's promise to look again at the "transitional" effect of his cuts is still a work in progress.

He's promised to find a solution by the time of the Autumn Statement on November 25.

He certainly won't have one to hand in the Commons on Tuesday.