Kenya's President Uhuru Kenyatta on Saturday promised to “fix” the judicial system, a day after the Supreme Court nullified his re-election.

He also warned the chief justice and judiciary not to interfere with the electoral commission as the country prepares for a new presidential vote.

Kenyatta again accused the court of overturning the will of the people after he had been declared the winner of the August 8 election. The court on Friday had said that the electoral commission had committed irregularities in the vote and called for a new election within 60 days.

The decision led Kenyatta to call the court “crooks.”

The judiciary has a “problem,” Kenyatta said in comments to elected officials from county assemblies. He also announced the start of his new campaign.

“We shall show you in 60 days that the will of the people cannot be overturned,” Kenyatta said. “We will come back and revisit this issue... Going forward, we must fix it.”

Opposition leader Raila Odinga had petitioned the court challenging Kenyatta's win, claiming manipulation. He now wants the electoral commission disbanded.

The commission's chairman has promised changes in personnel ahead of the vote and invited the prosecution of any staffer found to have manipulated results.

Kenyatta's party deputy chief whip in the Senate, Irungu Kangata, said on Friday the party will use its numerical strength in parliament to stop any attempt to disband the commission.

Constitutional lawyer Bob Mkangi said the electoral commission likely will not be disbanded unless the commissioners resign or lawmakers from the ruling and opposition parties reach a negotiated settlement. Using other ways, such as forming a tribunal, would be time-consuming, he said.

“With the shortness of time it would very difficult to organise a campaign and go after these guys. It's likely the (commission) will conduct elections as constituted,” Mkangi said.