Former Umno minister Rais Yatim has warned against a possible "BN 2.0" situation, if Pakatan Harapan were to accept everyone crossing over from BN now.

"If Harapan accepts into its fold everyone who feels pushed in a corner, then it would create BN 2.0 with all its damaging behaviour.

"All the struggles so far would have been for naught," Rais said in a posting on his Twitter last night.

He also urged people not to take PKR vice-president Rafizi Ramli's words lightly, pointing out that the former Pandan MP has sacrificed a lot for Harapan's struggle.

"Let's quickly fulfill our promise to the rakyat," Rais said.

Yesterday Rafizi had accused Prime Minister Dr Mahathir Mohamad of "bulldozing" through with three cabinet appointments - namely the defence, finance and home affairs ministers - without consulting PKR.

He immediately received brickbats from netizens for supposedly undermining the unity of the new coalition government.

PKR's Subang MP Wong Chen also came to Rafizi's defence last night, saying that it is unhealthy to never question authority.

He also said Rafizi spoke up because he did not want to see Mahathir's government start off on the wrong foot.

Party sources have since confirmed that PKR leaders were initially present for the meeting yesterday to discuss the cabinet line-up, but left before it started.

However, it is understood that Mahathir had met PKR de facto leader Anwar Ibrahim to discuss the cabinet list late yesterday at the Cheras Rehabilitation Centre, after he announced the three ministers' appointments.

Meanwhile, there have also been many elected representatives crossing over to join Harapan and its allies, such as Warisan in Sabah.

Groups such as Bersih and Engage have criticised the party hopping practice as well, along with Bukit Gelugor MP Ramkarpal Singh.

Ramkarpal said the defection of BN state and parliamentary representative to the newly-minted Harapan government is ill-advised and ought not to be condoned.