The former.
Since he doesn't agree with you, he's "splitting the party?"
I disagree with many Republicans on many issues. They disagree with me on those issues as well. However, 99.99% of them (and 100% of me) disagree in an open, forthright manner that doesn't involve rumor-mongering, back-stabbing, and so on, but instead revolves around open debate and discussion.
Kristol's in the 0.01%.
Kristol has this habit of using "anonymous sources" allegedly within the Bush administration that (a) just HAPPEN to agree 100% with his interpretation of things, and (b) have been conclusively demonstrated as being dead wrong whenever he was dead wrong--which was frequent.
In this post-Jayson Blair era, I think I might be forgiven for thinking that he made up his "sources" out of whole cloth.
Funny, the Paleos accuse him of leading the party about by it's nostrils. How can he be "splitting" the party at the same time he hijacked it? does not compute.
Perhaps the paleos are misreading the situation, because they are fixated on something else re: Kristol.