Deputy Prime Minister Nick Clegg has criticised the Welsh education minister’s decision to order a regrading of some GCSE English papers in Wales.
Mr Clegg told BBC Wales that Leighton Andrews appeared to be “shifting goalposts” for children in Wales.
A cross-border government row blew up with regrading ordered just in Wales.
The Welsh government said it was “properly” fulfilling its regulatory responsibilities.
Mr Andrews said hundreds of pupils in Wales were victims of an “injustice”.
The minister, as the exam regulator for Wales, had stepped in and ordered a review which found the original marking criteria disadvantaged students.
More than 2,300 of the 34,000 pupils in Wales who took English with the WJEC exam board (the former Welsh Joint Education Committee) received better results last week after their papers were looked at again.