NASA leader Raila Odinga has sent his representative Siaya Senator James Orengo to attend the meeting on his behalf.
There has been an uproar in the coalition after Raila Odinga signed the unity pact with president Uhuru Kenyatta.
The co principals said that they were not involved in the decision. The leaders have recently accused coalition partner ODM of sidelining them
The NASA summit meeting will take place today in Athi River. Raila Odinga is currently in Tanzania for an unspecified meeting with president Maghufuli.
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