
Divisions among senior Conservatives continue to rumble on ahead of a crunch cabinet meeting at Chequers on Friday.
The "away day" will see ministers attempt to thrash out an agreement on the government's Brexit plan, but senior Tories remain split on the UK's future customs relationship with the EU.
Brexiteer backbenchers met with the Julian Smith, the Tory chief whip, to warn they would not tolerate a softening of the government's stance.
Theresa May is expected to continue to meet ministers today to try to get them on board ahead of Friday's showdown.
Later, she will face Jeremy Corbyn at Prime Minister's Questions, with the Labour leader most likely to ask about Brexit or the NHS, which celebrates its 70th anniversary this week.
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'Let’s celebrate the NHS’s 70th birthday by burying some myths about it'
The important question is whether more money for the health service will improve outcomes, or whether there’s some kind of structural impediment
'Let’s celebrate the NHS’s 70th birthday by burying some myths about it'
The important question is whether more money for the health service will improve outcomes, or whether there’s some kind of structural impedimentThe former Tory party co-chair said "absolutely nothing tangible has happened" in response to her raising concerns, including by sending Theresa May a dossier of evidence. Writing in The Guardian, Baroness Warsi said:
"The party needs to be proactive and change its culture."
Words without action are at best flannel and at worst represent simple contempt.
So it's time for my party to set out its stall. Not only does justice need to be done, it needs to be seen to be done.
There should be a forensic, wide-ranging and transparent inquiry into Islamophobia in the party. The process should be published, those who are found wanting should be publicly named and membership withdrawn.
And it needs to be cathartic, allowing witnesses to come forward and tell their stories."
She added:
"For years I have argued that an internal inquiry was the solution to this mess.
"Unfortunately the time for that has now long passed. As a plethora of people and organisations have said, only with a full, independent inquiry can we truly become the party we claim to be: One that deplores prejudice in all its forms and stamps it out wherever and whenever it rears its ugly head."

Official Brexit campaign ‘broke electoral law’ by coordinating with another group to bust spending limit
Data firm Aggregate IQ used the cash to target enough voters to – a whistleblower claimed - potentially sway the referendum result