Inline4,
Maybe you can be more specific when you said President Obama wants to change the constitution?
The only politician I can remember talking about changing the Constitution was Mike Huckabee (he would support making amendments to the Constitution to follow "God's Standards"...
http://www.rawstory.com/news/2007/Huckabee_Amend_Constitution_to_meet_Gods_0115.html)
Obama was recorded on a radio broadcast in 2001 supposedly stating that the Constitution needed to be amended to allow for a redistribution of wealth. Here is what Obama said:
"If you look at the victories and failures of the civil rights movement, and its litigation strategy in the court, I think where it succeeded was to vest formal rights in previously dispossessed peoples, so that I would now have the right to vote, I would now be able to sit at a lunch counter and order, and as long as I could pay for it, I’d be OK."
"But," Obama said, "The Supreme Court never ventured into the issues of redistribution of wealth and sort of more basic issues of political and economic justice in this society. And to that extent, as radical as I think people tried to characterize the Warren Court, it wasn't that radical. It didn't break free from the essential constraints that were placed by the founding fathers in the Constitution, as least as it's been interpreted, and Warren Court interpreted in the same way that, generally, the Constitution is a charter of negative liberties, says what the states can't do to you, says what the federal government can't do to you, but it doesn't say what the federal government or the state government must do on your behalf. And that hasn’t shifted."
He never said that the Constitution needs to be amended to support an agenda (unlike Huckabee). He had criticisms of the Constitution, which is not out of line considering the Constitution was created in a time when all men were NOT created equal. But he also said that the Warren Court (the civil rights era Supreme Court) wasn't out of line with their rulings in regards to Constitutional Law and shouldn't be criticized as such. If anything I would think he was supporting the rights of the state government over the rights of the federal government (which is actually a traditional conservative view). The Constitution isn't an infallible document like so many conservative pundits would have you believe, and the founding fathers realized this which is why they allowed for amendments in the first place.