 Mr Kamau has voted in favour of all government-sponsored motions in parliament.In the run-up to the 2017 general election, Mr 
Kamau has emerged as the presumptive opponent to Mr Francis Mwangi "wa Iria" for the post of County governor for Murang'a, with their rivalry drawing various county leaders to openly support either camp.In what appeared to be an indication of support by national players of the Jubilee alliance, Mr Kamau hosted parliamentary majority leader Adan Duale at a rally in Murang'a in December, 2016, at which Mr wa Iria's record as governor was attacked.