KUALA LUMPUR, June 28 ― Datuk Zaid Ibrahim, a key protagonist in the campaign to unseat Prime Minister Datuk Seri Najib Razak, today extended an invitation to Datuk Seri Husni Hanadzlah to join the “Save Malaysia” cause.

Writing on Twitter, Zaid described Husni, who was once his colleague in Umno, as a “good man” who knew enough to want to do something for his country.

“Husni is a good man; and good people can’t stay in the cesspool for long,” he wrote.

Yesterday, it was announced that Husni had quit all his government and political posts. He will, however, remain the MP for Tambun, a seat he has held since 1995.

Husni did not explain his decision but according to Najib, the senior politician decided to quit for “personal reasons”.

Zaid, however, appeared to suggest that there could be more to the decision than the prime minister let on.

He recalled his own decision to quit the federal Cabinet years ago, and noted that Husni had said then that he should have been patient.

“When I resigned Husni said I should patience and work from within. Now he probably understands things better,” Zaid wrote on the microblogging site.

“I urge Husni to come join Save Malaysia movement. He knows enough to want to do something for the country,” he said in his final posting on the matter.

Zaid, a former de facto law minister in the Abdullah administration, resigned from the Cabinet in 2008 to protest the use of the now-repealed Internal Security Act.

Following his resignation from government, he was sacked from Umno and subsequently joined PKR in 2009.

He left the opposition party a year later, however, after accusing its leadership of condoning electoral fraud in its internal elections.

The Save Malaysia movement headed by former prime minister Tun Dr Mahathir Mohamad was launched in March.