State lawmakers and officials are looking to pursue a new state mental hospital in Kaneohe at a cost of $150 million to $165 million to address overcrowding and repeated instances of assault on staff. The Hawaii State Hospital in Kaneohe has more patients than it can handle and has been plagued with problems for the past two decades, including assault, overtime violations, and improper hiring practices. The psychiatric hospital treats people with mental illness, including schizophrenia, bipolar…