Sen. Tim Kaine said Wednesday there's no legal authority for the current U.S. mission against ISIS in Iraq and Syria. We have been engaged in a war -- that is not about imminent defense of the United States -- without legal authority, the Virginia Democrat said at the Wilson Center on Wednesday, ahead of a panel discussion on the legal authority for military intervention, moderated by CNN's Jim Sciutto. The mission is not covered by either the wording or intent of the 2001 and 2002 authorizations for use of military force as the White House argues, Kaine said, adding that such an argument is ridiculous and inconsistent with President Barack Obama's previously stated interpretation of the AUMF. Kaine, a member of the Senate Foreign Relations Committee, has proposed a new, limited authorization, specifically targeted to the current mission against ISIS. We should deal with it right away, he said, stressing that it could be accomplished in the lame-duck session in Congress. Rand Paul on ISIS response: This war is now illegal ' He's also calling for changes to the War Powers Resolution that will result in a better process for war authorization. In a statement last week, Kaine said he was encouraged by Obama's recent willingness to work with Congress on a new authorization, but also troubled by suggestions today that Congress should wait until the new Congressional session in 2015