The health secretary has invited the Welsh and Scottish governments to discuss how best to tackle NHS waiting lists, as millions wait for hospital treatment across the UK.
Steve Barclay accused them of having worse delays than England in some cases, but they disputed the figures.
Hospital waiting lists in England hit a record 7.57million people in June.
He also told the Welsh and Scottish governments he was open to Scottish and Welsh patients being treated in England.
NHS services are devolved, meaning Scotland, Wales and Northern Ireland control them in those nations, while the UK Government runs them in England.
Prime Minister Rishi Sunak has made cutting waiting lists one of his "five priorities", and he's said people should hold him to account if NHS waiting lists in England do not fall by January 2025.
Wrong direction
So far, the numbers are not moving in the right direction.
Knowing this could bite when it comes to an election campaign, UK Government ministers are keen to argue things wouldn't be better under Labour or the SNP.
The government said that, under Labour in Wales, more than 73,000 people have been waiting at least 77 weeks for treatment - and under the SNP in Scotland more than 21,600 people have been waiting over 78 weeks for outpatient, day-case or inpatient appointments.
But both Scottish and Welsh governments have hit back, saying it isn't comparing like-for-like figures.
Scottish health minister Michael Matheson said: "Rather than attempting to involve themselves in devolved areas, the UK Government would be well-served focusing on tackling the many issues in the health service south of the border."
Waiting times
And a Welsh government spokesperson said: "Long waiting times are falling every month in Wales and have more than halved in the past year.
"The overall growth in waiting lists... has been smaller in Wales than in England over the last 12 months."
In England, the waiting list for hospital treatments in England in June was more than three million higher than it was before the pandemic, hitting 7.57million people.
Of those on a waiting list, more 383,000 people have been waiting longer than a year.