On 22 February 2018 , Lemma 's party , OPDO , called for an emergency executive committee meeting .
On 22 February 2018 , Lemma 's party , OPDO , replaced Lemma by Abiy as Chairman of OPDO .
On 22 February 2018 , Lemma 's party , OPDO , called for an emergency executive committee meeting and replaced Lemma by Abiy as Chairman of OPDO .