governance. In the aftermath, Hontiveros acknowledged Senator Osmena's observation of her mixed messages in the campaign may have been the reason for her loss. In December 2014, Hontiveros was inducted as a trustee of the Philippine Health Insurance Corporation board. Senate Hontiveros ran again for senator and won in the 2016 election under the Koalisyon ng Daang Matuwid of President Benigno Aquino III. Landing ninth place, she was proclaimed a senator-elect by the Philippine Commission on Elections, sitting en banc as the National Board of Canvassers, on May 19, 2016. In November 2016, Hontiveros, along with hundreds of progressive groups, protested the sudden burial of the late dictator Ferdinand Marcos in the Libingan ng mga Bayani. Hontiveros authored Senate Bill No. 1345, or the Philippine Mental Health Bill, which aims to create a mental health law for the Philippines by integrating mental health care services and programs into the nation's public health system and ensuring its availability in all hospitals nationwide. The bill was filed on February 17, 2017, and passed the Senate on May 2. A staunch activist against the re-imposition of the death penalty, Hontiveros, along with key senators, announced in February 2017 that they would block any attempt to legislate such a law after the lower house of congress passed their version of the bill. On August 16, the shooting of Kian delos Santos occurred. Hontiveros is a consistent figure against the deadly Philippine Drug War, which has killed at least 20,000 as claimed by Senator Antonio Trillanes. She was one of the main initiators of a Senate investigation against the police personnel that killed Delos Santos. She also took legal custody of the case witnesses, with proper written consent from the minor and their parents, after fears of police retaliation against the witness surfaced. Hontiveros was the principal author and sponsor of Republic Act No. 10932, or the "Act strengthening the Anti-Hospital Deposit Law", which increases the penalties for hospitals that demand deposits or advance payments before administering basic emergency services. In September 2017, Hontiveros caught justice secretary Vitaliano Aguirre II drafting fabricated charges against her through text messages during a hearing on the deaths of minors caused by the Philippine Drug War. Aguirre's text messages instructed former Negros Oriental representative Jacinto Paras, a member of the controversial group VACC, to 'expedite' cases against Hontiveros, a sitting senator. Aguirre used the same tactic against Senator Leila