Ole Lenku's appointment came as Kenya was transitioning to a new constitutional dispensation as well as a devolved government. His tenure as Cabinet Secretary has also been met with increased acts of terrorism culminating in the Westgate Mall attack, which left 69 dead and scores of people injured. On 17 June 2014, Lenku dismissed calls for his resignation by the opposition and civil society led by the Law Society of Kenya (LSK). On 25 June 2014, Member of Parliament for Kisumu Central Ken Obura, a member of the Coalition for Reforms and Democracy (CORD) Now National Super Alliance (NASA), gave a notice of the motion to impeach Ole Lenku, who fought back as the motion collapsed when the opposition quickly retreated.