Plaid's Dafydd Elis Thomas is staying away, defying his party's threelinewhip, sharing "full and frank exchanges" with his group and expecting the sanctions and the trouble that has been a long time coming.
BBC: 'No conniving' and 'no conspiracy'
2.
If the government sticks to its public line - a three-line whip to oppose giving the public their first vote on Europe since 1975 - that's just what they'll get.
BBC: Europe: The bomb's ticking louder
3.
It added that a number of these votes were subject to the UUP three-line whip.