The Leader of the House William Hague has thrown down the gauntlet to Labour over English devolution.
After a meeting at Chequers between the Prime Minister and backbench MPs, it emerged that the Tories plan to press ahead with what were said to be "robust proposals" to give English MPs control over English laws.
"If other parties make it impossible to deal with these issues in tandem, " Mr Hague warned.
Wales and Northern Ireland must be granted 'home rule' powers after Westminster leaders' pledge to devolve more power to the Scottish Parliament, the Welsh First Minister has said.
Carwyn Jones told the Labour conference this morning: "The future we promised to Scotland must be delivered - an equal share of resources, a seat at the table, a powerful Parliament - that must be offered to Wales and Northern Ireland too."
Mr Jones warned Labour delegates that without a fair settlement for all the countries of the UK, support for parties such as the SNP, Plaid Cymru and Ukip would strengthen.
If last week was about "country before party" this week it's a very different story.
Cameron may have wrong-footed Labour, but there may also be serious rumblings from his own backbenchers, if he wavers on England's future.
Following the promise of further powers for Scotland, David Cameron is now talking about a new deal for the other home nations.