document is Johnson response to PM asking him to substantiate a claim made at a meeting of her Brexit "war Cabinet" on 7 February, when ministers' talks centred on Northern Ireland and immigration. 1/10
- ie P1A option B
2/10
- acceptance border could harden as a result of regulatory divergence 3/10
- playing down the impact of a hard border in letter to PM
4/10
5/10
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7/10
8/10