He supports repealing the Controlled Substances Act and abolishing the DEA. A referendum on the repealing of the 8th Amendment was held on 25 May 2018. The Libertarian Party advocates repealing all laws that control or prohibit homosexuality. President Barack Obama signed the legislation repealing the NSPS system on October 29, 2009. As governor, Huntsman threatened to veto a measure repealing in-state college tuition for illegal immigrants. Gallego supports Obamacare and opposed the repealing of the law. Amid the backlash, Harris adamantly argued against repealing the bill. On October 29, Ben Shelly vetoed the bill repealing the language requirement. The governing Conservative Party is committed to repealing the Act. Mast is in favor of repealing the Affordable Care Act (Obamacare). In 2008, he voted in favor of permanently repealing the estate tax. In 2017 he said he was trying to prevent Republicans from repealing Obamacare. Knight was in favor of repealing the Affordable Care Act (Obamacare). Russell was also a very early advocate of repealing sodomy laws. Chaffetz has repeatedly voted in favor of repealing the Affordable Care Act.