Ed Miliband was not an MP in 2003, when Labour and Conservative MPs voted en masse to approve the British invasion of Iraq: so we do not know how he would have voted if he had had the opportunity.
The Ed-supporting New Statesman has been keen to promote his anti-Iraq war credentials — see for example their third-hand hearsay evidence here — but there appears to be nothing on the public record to back up his claim.
We are left, therefore, with Ed Miliband’s voting record in the one full Parliament in which he has served. Take a look at the new Labour leader’s voting record in the House of Commons, as recorded by PublicWhip.org.
As you can see, Mr E. Miliband has a proud 0% voting record on the issue of ‘Iraq Investigation – Necessary’. There were 10 separate votes in the House of Commons in the period in which he has been an MP: in not a single one of these did Mr E. Miliband take the opportunity to make clear, or even hint at, what he now so sincerely believes: that the Iraq war was wrong.