Speculation is rife that a number of Sabah MPs are close to crossing over to the Pakatan Rakyat. In the first of a two-part series, we will discuss the possibility and implications of such a development.

In part two (tomorrow), we will look at the prospects of PKR president Wan Azizah becoming the PM, the possible mechanics of a Pakatan takeover and what Barisan Nasional might resort to if such an attempt is made.