While Blunkett had been accused of using his position to get favours for his ex-lover, the final straw appears to have been indiscreet remarks he made about many of his cabinet colleagues.
Those appeared in a book today, but had been serialised in UK newspaper the Daily Mail.
Today the Mail published fresh allegations about alleged transgressions over visas, but it was his "colleagues" in the Cabinet and in his party that did for him in the end.
Blunkett and Blair had proposed winning next year's general election here on a slate of further law and order legislation, one of which was the ID card. µ
See Also
Big Brothers
To ID or not to ID
UK government seeks to extend snooping laws
ID cards: A highly organised minority (that can be safely
ignored)
Would you like spies with that?
ID card cabinet minister accused in visa scandal
Blair, Blunkett turn Britain into police state
Tories back Blunkett's ID plans