Commons Speaker John Bercow has insisted that the House of Lords were acting within their rights when they voted for a motion to delay £4.4 billion of tax credit cuts while an impact assessment is carried out.
Speaking during Treasury questions he said:
Nothing disorderly has occurred, there has been no procedural impropriety - that would not have been allowed.
Whether people like what happened last night on the substance of the issue or in terms of their views on constitutionality is a matter for each and every one of them.
In terms of where matters rest... this is now a matter for the Government to take forward as it thinks fit.
The Speaker's comments came following accusations by leader of House of Commons Chris Grayling that it "cannot be right" for the unelected Lords to stand in the way of the changes.
They are not there to interfere with the settled will of the House of Commons, warned Boris Johnson.
A working mum who would be hit by Tax Credit cuts spoke to ITV News ahead of the House of Lords vote on the changes.
Peers will have to decide whether to delay changes to the tax credits bill, review them or scrap it altogether.