This morning, in response to questions from TPM Election Central, Sen. Barack Obama's campaign issued a somewhat hedged statement opposing permanent U.S. bases in Iraq.

The campaign has now followed that up with a new statement offering much more definitive opposition to a permanent U.S. military presence.

We're still tracking down positions from other candidates. More soon.

Late Update: Sen. Hillary Clinton has sent a letter to the White House outlining her opposition to permanent U.S. bases in Iraq and saying they would "damage U.S. interests." As we reported yesterday, Sen. Chris Dodd is also opposed. We'll have a statement from former Sen. John Edwards' campaign shortly.

Later Update: And John Edwards weighs in against a "Korea-style" occupation of Iraq.