She was lead negotiator for president Kibaki in the National accord talks after the disputed election of 2007. She was reappointed minister of Justice & constitutional Affairs with the added mandate of National cohesion. She initiated all the necessary legislation to facilitate the coalition government, and led the enactment of the constitution of kenya review Act 2008 that enabled the completion of constitution culminating in the constitution of kenya 2010. Martha resigned on principle as minister of justice in April 2008 and continued to serve as MP Gichugu for the rest of the term.