NASA members have refused to participate in the vetting of the cabinet nominees saying they do not recognize president Uhuru Kenyatta's leadership. National assembly minority leader John Mbadi wrote to the speaker, Mr Justin Muturi, in December, explaining why the coalition would not take part in the vetting.Minority whip Junet Mohamed reaffirmed the position, adding that NASA had instructed its members in other committees not to take part in the vetting of principal secretaries.