US President George W. Bush has cited intelligence failures prior to the invasion of Iraq as the biggest regret of his Presidency.

Bush was interviewed by ABC's Charles Gibson over the weekend at the Camp David presidential retreat in Maryland.

Bush was interviewed by ABC's Charles Gibson over the weekend at the Camp David presidential retreat in Maryland.

George W. Bush, US President, said, "The biggest regret of all the presidency has to have been the intelligence failure in Iraq. A lot of people put their reputations on the line and said the weapons of mass destruction was a reason to remove Saddam Hussein. It wasn't just people in my administration and, you know, that's not a do-over, you know. I wish the intelligence had been different, I guess."

Bush ordered the US-led invasion of Iraq in March 2003 with the support of Congress. The decision was largely justified on grounds that Iraq was building weapons of mass destruction.

That later proved to be false. Bush said another disappointment during his years in the White House was not passing the immigration reform.