Two former British prime ministers who played crucial roles in bringing peace to Northern Ireland joined forces Sunday to urge lawmakers to reject government plans to override the Brexit deal with the European Union, arguing that it imperils that peace and damages the UK's reputation.

In an article in The Sunday Times, John Major and Tony Blair slammed the current UK government for "shaming" the country with legislation that, in places, goes against the very deal it signed to allow for the UK's smooth departure from the EU earlier this year.