Alex Salmond told Peston on Sunday that he was backing the motion because a "verdict" on Blair was needed.Read the full story ›
The long-awaited publication of the Chilcot report has raised many questions - we take a look at some of the key issues.Read the full story ›
Many of the families of British service personnel who died in the Iraq War are still angry with Tony Blair, with one family member branding the former prime minister the "world's worst terrorist".
As ITV News' correspondent Martin Geissler reports, at last, with the publication of the Chilcot Report, they feel the truth is on their side.
There was no imminent threat in Iraq and the possibility for a diplomatic solution was cut short, the former international development secretary Clare Short said.
Short, who served in the Blair government in the run-up to the Iraq War, told ITV News: "The suspicion there might be some WMD had been there for years and years. There was no imminent threat, there was no immediate danger, this was a long term issue.
"The only reason for the date of the invasion is America decided on that date and what Chilcot says absolutely clearly is the possibility for a diplomatic solution was cut short."
She added that at the time "Blair wasn't being straight with us or indeed with the country and I think everybody knows that."
Tony Blair should be brought to account over the Iraq War after the publication of the Chilcot report, the father of a soldier killed in the Iraq War has said.
Prominent anti-Iraq-War campaigner Reg Keys, whose 20-year-old son Thomas Keys, from Bala, in Gwynedd, died in Iraq, said lawyers will now be examining whether this was an illegal war.
He said he would like to see legal action against Mr Blair and other politicians who were involved in the decision to send troops to Iraq.
Mr Keys said the "ultimate goal" would be "to hold them to account in a court of law" but "publicly they've already been judged".
Former President George Bush has not read the Chilcot report but has said he continues to believe "the whole world is better off without Saddam Hussein in power".
George Bush was "hosting wounded warriors" at his ranch and "has not had a chance" to read the report, his spokesman said.
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In a statement given to ITV News, Mr Bush's spokesman said: "President Bush is hosting wounded warriors at his ranch today and has not had the chance to read the Chilcot report.
"Despite the intelligence failures and other mistakes he has acknowledged previously, President Bush continues to believe the whole world is better off without Saddam Hussein in power.
"He is deeply grateful for the service and sacrifice of American and coalition forces in the war on terror. And there was no stronger ally than the United Kingdom under the leadership of Prime Minister Tony Blair. President Bush believes we must now find the unity and resolve to stay on the offensive and defeat radical extremism wherever it exists."
Tony Blair has said there is "not a single day" where he doesn't think about the Iraq decision but he "had to take a decision that was really hard".
The former prime minister said he "thought really deeply" about the "hard decision".
"I go back over it all the time, all the time I relive it, all the time, there's not a single day I don't relive it."
Former foreign secretary Jack Straw has said that he will live with the consequences of the decision to go to war in Iraq "for the rest of my life."
Mr Straw added: "This is as nothing, however, compared with the grief of all those who lost loved ones in the conflict and its aftermath".
He continued, "with the benefit of hindsight, different decisions would have been made in Iraq".
The former Labour MP added that the decision to go to war in Iraq was "the most serious decision in which I was ever involved".
Confronted with information about weapons of mass destruction, Mr Straw insisted that he did not take the intelligence "at face value, but questioned those providing it about its accuracy and its provenance". Based on this, Mr Straw said he believed "military action was necessary", though he conceded this was not what the report had found.
Jeremy Corbyn may bow to pressure from MPs to step down as Labour leader after he accuses Tony Blair over his role in the Iraq war when the Chilcot inquiry report is published next week, Westminster sources suggested.
The beleaguered party chief has so far refused to go despite facing mass resignations from his cabinet in a full-scale revolt among the Labour parliamentary party.
However some believe that he may be holding out for a chance to confront the former Labour Prime minister Mr Blair when the long-awaited Chilcot report is published next Wednesday, reports ITV News Political Correspondent Carl Dinnen.
It's possible that once that big date is out of the way, he may reconsider his position.