Hardly surprising, really.
With the death of Teoh Beng Hock, it's probably a suicide mission (no pun intended) to be affiliated with Barisan Nasional.
More so if you're the running dog.
So Chua Jui Meng is taking a walk. And PKR appears to have embraced him with open arms.
If you ask me, PKR is infiltrated by ex-UMNO already. An additional supply of ex-MCA wouldn't make a huge difference.