A cut and paste job

Barack Obama: U.S. presidential election, 2008/On the war in Iraq

Barack Obama (D-Ill.) came out in opposition to the Iraq War at least as early as October 2, 2002, when he gave a speech against the war at an anti-war rally in Chicago.^[1][2]

He gave the speech nine days before the the Joint Resolution to authorize the use of United States Armed Forces against Iraq (H.J.114), commonly known as the AUMF, which was passed October 11, 2002.^[3][4]

Obama was not a U.S. senator at the time, and thus did not, as the Agence France Presse argued, "face therefore the high-stakes choice which confronted Clinton, fellow candidates Senator Joseph Biden, Chris Dodd and former senator John Edwards, who ... all voted in October 2002 to give Bush power to wage war in Iraq."^[2]

Obama is quoted from the day before the 2004 Democratic National Committee convention as saying:^[5]

"On Iraq, on paper, there's not as much difference, I think, between the Bush administration and a Kerry administration as there would have been a year ago. There's not that much difference between my position and George Bush's position at this stage. The difference, in my mind, is who's in a position to execute."

http://www.sourcewatch.org/index.php?title=Barack_Obama:_U.S._presidential_election%2C_2008/On_the_war_in_Iraq

as i dont like to cut and paste this does however show that congress voted to give bush the power to wage war. Notice the names there chosen they democrats, follow the link and read for yourself.

some more facts from the same page.

Fact check: Obama v Clinton voting records

• 2002: Clinton "voted for the October 2002 resolution authorizing the Iraq war, while Obama (Ill.), then a state senator, publicly opposed the war." [2]
• 2004: In July 2004, Obama told New York Times that "he was not sure whether he would have voted against the resolution had he been in the Senate." [3][4]
• Since 2005: Obama's "voting record has been virtually identical to Clinton's. 'Senator Obama voted $301 billion in funding. So did Senator Clinton, ... Senator Obama voted against a definite withdrawal date. So did Senator Clinton.'" [5] See Obama's June 21, 2006, Floor Statement on Iraq Debate.
• 2006: In October 2006, Obama told the New Yorker's David Remnick that "senators who saw intelligence reports on Iraq may have been justified in voting for the invasion. 'I didn't have the benefit of U.S. intelligence,' he said. 'And, for those who did, it might have led to a different set of choices