Juujo secretly defected to Sharmarkee despite, and partly because of, past enmity with him.

Evidence

Juujo, the minister of Agriculture, and one of the men who tried to convince Osman to seek reelection had secretly agreed with Egal to vote for Sharmarkee. A member of the Upper Juba delegation, Gaaytano, informed Hussen that Juujo had tried to convince Gaaytano to support Sharmarkee. Incidentally, Sharmarkee and Juujo had been political foes since Sharmarkee’s premiership years. — Abdi Ismail Samatar, Africa’s First Democrats, 930