According to Dr Mahathir this is because PKR had convinced more than 30 BN Members of Parliament to cross over to the opposition, the Pakatan Rakyat.
BN has 140 MPs in the Dewan Rakyat and PKR 82 out of a total of 222 MPs.
Here's what Dr Mahathir says as reported by Bernama:
"Well, I think it is a possibility that you can't dismiss lightly. Now, these politicians are interested in how much they get, they are not interested really in serving the nation.To continue, read here...
"People who feel that they did not get what they wanted presently and they are offered positions, the urge to crossover especially when there is no inherent loyalty to the party.
"I feel very strong (about it), it can really happen. I first wanted to dismiss this possiblity but on studying the situation I feel that there is great danger. Of course, if this government loses power, it will not be in a position to dole out all kinds of goodies because at that time the clout is gone,"
Dr Mahathir was speaking to reporters after delivering a keynote address n "National Sovereignty" at the 7th Perdana Discourse Series at the Perdana Leadership Foundation, here.
Asked if this was his greatest fear, he replied that if the cross over were to take place, then Malaysia would experience "a lot of conflicts"..
"We see the response of the Malays, for example. They have come up with a list of demands for this and that in response to the demands made by the others. They think that the solution is to abandon this concept of democracy, that they should go back to the feudal style of government.
"There is already talk among them...I don't know how serious it is but the fact that it is being actually voiced (out) is very disturbing," Dr Mahathir said