Acting BN chairperson Mohamad Hasan has credited former premier Najib Abdul Razak's "bossku" persona as a contributing factor in the coalition's Semenyih by-election victory today.

"Everyone played a role, there wasn't one that played a greater role than the other.

"But definitely, Najib's movement brought in a new aura to help BN win," Mohamad said at a press conference in Semenyih today...