Former prime minister on Thursday attended the wiper delegates conference, the delegates were endorsing Kalonzo as wiper presidential candidate.
Kalonzo who is one of the OKA principals has vowed to go upto the ballot.
Raila’s presence meant that the former prime minister could be working on a coalition with OKA principals.
Deputy president William Ruto has been banking on disunity between OKA and ODM leader to gather western and Eastern votes.
Other OKA principals attended the event. They all promised to work together upto the last minute.