she does not have much choice.I don’t understand why she seems determined to placate the minority of the ERG ,rather than reaching out to the majority of the Tory party who clearly favour a softer Brexit and staying in the customs union,will find favour with a lot of Labour MPs at the same time.
her duty and instinct are to keep the tories together.
She needs the ERG and DUP to support government bills when they go to the HoC.
Her government cannot survive if one of these two factions vote against her bills.
In the past, the threat of losing power to Labour was enough to keep the Eurosceptics in check. Until now, that threat hasn't worked for TM because JC is not seen as a credible threat.
TM needs Labour to lead conservatives by at least 10% to get her deal through. They are still level pegging at the moment.