Bersatu information chief Wan Saiful Wan Jan has challenged Malacca BN chief Ab Rauf Yusoh to disavow BN adviser Najib Abdul Razak over the latter's alleged "greed".<br /><br />"If Rauf keeps quiet, therefore it is assumed that he and BN support Najib's greed. What guarantees do we have that he will not emulate Najib?<br /><br />"The people of Malacca can evaluate BN's behaviour. Some of them will never change. I'm confident that the people of Malacca will choose wisely this Saturday," Wan Saiful said in a post on his Facebook page last night.