Pak Lah to Dr M: Nothing More Can Be Done!

All UMNO members and Cabinet ministers back Pak Lah as PM.

and, PM said to Mahathir: "there's nothing more they can do".

Zam said this should not be construed as a rejection of Mahathir. The what is it?

If not rejection, then the only other word is: defiance or recalcitrance.