McCain Nervous About a Potential Wes Clark VP?

According to a Netherlands newsfeed, de Volkskrant, it appears that McCain may be more than just a little frightened about the potential of Wes Clark as VP:

En route to Colombia, McCain also weighed in on the simmering controversy over remarks made by one of Barack Obama’s surrogates, retired Gen. Wesley Clark, that appeared to diminish McCain's war record. He called for Clark to step aside: “I think it’s up to Obama now to not only repudiate him, but to cut him loose,” McCain told reporters on his plane.

Hmmm.. sounds like the Senator's a little nervous about the possibilities here.