Here is a good summary of the debate among conservatives about whether or not to support the war in Libya:
Ron Radosh » Our Libyan War: What Position Should Skeptical Conservatives Take?.
Neoconservative William Kristol is calling the president Barack H. Reagan and saying conservatives should back off in their criticism and support the president in war time. He believes that America should always be on the side of freedom and that protecting the Libyan rebels and working to overthrow Gaddafi is something that Americans should just do as a matter of principle. All Kristol is saying, according to his turn of phrase, is “give war a chance.”
Some Congressional conservatives, such as Florida Senator Marco Rubio says that congress should pass a resolution not only authorizing the war but taking it further, making it official policy that our goal is to remove Gaddafi, which would permit sending in troops if necessary.