Ken Houston, Kristina Molina, Officially Challenge Libby Schaaf For Oakland Mayoral Race 2018 - Video Ken Houston, Kristina Molina, Officially Challenge Libby Schaaf For Oakland Mayoral Race 2018 Oakland Mayor Libby Schaaf, after months of being the only one running for mayor (again) in 2018, has not one, but two challengers as 2017 comes to a close: Ken Houston and Kristina Molina. One is well known to many in the Oakland political community, the other not. Ken Houston, the well-known community liason and clean-neighborhood activist, has placed his hat in the ring to run for the office a second time. In 2014, Mr. Houston was one of 15 candidates, and received 518 votes, or one-half of one percent of the total votes cast in the election that made Ms. Schaaf the 50th Mayor of Oakland. Since then, Ken has focused on two issues: homelessness and illegal dumping as the main problems he says Oakland has not effectively addressed. In 2014, he was Chair of the East Oakland Beautification