Funyula MP Paul Otuoma has tendered his resignation to ODM following the debacle over Busia governor nominations.
"I would like to resign and withdraw my membership with immediate effect," Otuoma said in a letter to the party dated April 20.
The legislator, in the letter addressed to ODM secretary general Agnes Zani, asked that his name be removed from the members' list.
The MP was ODM life member number 000032 and had been issued with life membership certificate.
"I have voluntarily opted to leave the party," he said barely a week after disputing the outcome of Busia governor primaries.
The lawmaker said he will run against the incumbent Sospeter Ojaamong as an independent candidate on August 8.
after Ojaamong was declared the winner of the primaries with 92,358 votes against Otuoma's 63,752.
Otuoma claimed the exercise was flawed and asked the party to cancel the results and schedule a repeat vote.
But he said his name will still be on the ballot paper with or without ODM in the August 8 polls.
"I will prepare to run as an independent candidate if that is the case. That is the only option available given the nominations deadline," he said on Wednesday.
"I will go to the electorate to ask for votes and let people decide who will be the Governor of Busia County."
"I have already made a decision to quit the Orange party after the Secretariat failed to solve our issues," he said.
The MP said he supports party leader Raila Odinga's presidential bid, adding he does not want to involve the ODM leader in the current stalemate.
He added that he wants to avoid causing a rift among communities in Busia as the Teso and Luhya have lived peacefully for many years.