Veteran politician Koigi Wa Wamwere had been the latest leader to weigh in on the Ugenya parliamentary by-election that was held on Friday.
In the election, the Orange Democratic Movement (ODM) through its candidate Chris Karan lost to David Ochieng of the Movement for Democracy and Growth (MDG) party.
Speaking on Saturday, the former Subukia lawmaker said that the bloc is suffering from the growing dictatorship within the opposition chief Raila Odinga-led side.
He observed that residents were most likely retaliating to the party's decision to impose candidates on them, without caring for their opinion by holding primaries.
"Huenda wananchi waliamua kuwafunza adabu kwa kuwalazimishia watu (the voters were most likely retaliating to the party's decision to deny them the chance to elect their own leaders)," he said.
Wamwere was speaking on Radio Sauti Ya Mwananchi's Cheche Show on Saturday evening.
The Orange party has since conceded defeat, with Wamwere who decamped to the party from Jubilee after the 2017 elections saying ruling out any chances of foul play.
"Naamini hapakuwa na wizi wowote pale na walioshinda walishinda kihalali (I believe that the exercise was free and fair and there were no malpractices)," he added.
The party issued a direct ticket to Karan after Ochieng filed a successful petition against his 2017 election, leading to its nullification by the Supreme Court in December 2018.