It appears that Lemma said he is negating medemer.
Either is shrewd that he said this for some political gain, strategic, or he has other intentions that require swift actions.
Points to note:
1) he has had frequent meetings with Jawar at the Ministry of Defense
2) the killings of officials in the Oromia region
3) partiality of the leyu police
4) the 500 000 resettlement
......